PHP MapScript ¶

Author:	Daniel Morissette
Contact:	dmorissette at mapgears.com
Author:	Yewondwossen Assefa
Contact:	yassefa at dmsolutions.ca
Author:	Alan Boudreault
Contact:	aboudreault at mapgears.com
Revision:	$Revision$
Date:	$Date$ Note If you are using MapServer 5.6 and older, please refer to the PHP MapScript 5.6 documentation instead. Note If you are migrating your existing application that is based on MapServer 5.6 or older, to MapServer 6.0 or beyond, please read the PHP MapScript Migration Guide for important changes.

Contents

Introduction ¶

This is a PHP module that makes MapServer’s MapScript functionalities available in a PHP Dynamically Loadable Library. In simple terms, this module will allow you to use the powerful PHP scripting language to dynamically create and modify map images in MapServer.

Versions Supported ¶

PHP 5.2.0 or more recent is required; since MapServer 6.0, support for PHP 4, PHP 5.0 and PHP 5.1 have been dropped. PHP MapScript was originally developed for PHP 3.0.14, and after MapServer 3.5 support for PHP 3 was dropped.

The module has been tested and used on Linux, Solaris, *BSD, and Windows.

How to Get More Information on PHP MapScript ¶

For installation questions regarding the PHP MapScript module, see PHP MapScript Installation.
The MapServer Wiki has information on this module, that was contributed by users.
New PHP MapScript users should read the By Example document.
The project’s home is the PHP/MapScript page on MapTools.org.
Also, see the MapScript, and the Mapfile sections of this site.
Refer to the main PHP site for their official documentation.

Important Note ¶

Constant names and class member variable names are case-sensitive in PHP.

Constants ¶

The following MapServer constants are available:

Boolean values: MS_TRUE, MS_FALSE, MS_ON, MS_OFF, MS_YES, MS_NO
Map units: MS_INCHES, MS_FEET, MS_MILES, MS_METERS, MS_KILOMETERS, MS_DD, MS_PIXELS, MS_NAUTICALMILES
Layer types: MS_LAYER_POINT, MS_LAYER_LINE, MS_LAYER_POLYGON, MS_LAYER_RASTER, MS_LAYER_ANNOTATION, MS_LAYER_QUERY, MS_LAYER_CIRCLE, MS_LAYER_TILEINDEX, MS_LAYER_CHART
Layer/Legend/Scalebar/Class Status: MS_ON, MS_OFF, MS_DEFAULT, MS_EMBED, MS_DELETE
Layer alpha transparency: allows alpha transparent pixmaps to be used with RGB map images MS_GD_ALPHA
Font types: MS_TRUETYPE, MS_BITMAP
Label positions: MS_UL, MS_LR, MS_UR, MS_LL, MS_CR, MS_CL, MS_UC, MS_LC, MS_CC, MS_XY, MS_AUTO, MS_AUTO2, MS_FOLLOW, MS_NONE
Bitmap font styles: MS_TINY , MS_SMALL, MS_MEDIUM, MS_LARGE, MS_GIANT
Shape types: MS_SHAPE_POINT, MS_SHAPE_LINE, MS_SHAPE_POLYGON, MS_SHAPE_NULL
Shapefile types: MS_SHP_POINT, MS_SHP_ARC, MS_SHP_POLYGON, MS_SHP_MULTIPOINT
Query/join types: MS_SINGLE, MS_MULTIPLE
Querymap styles: MS_NORMAL, MS_HILITE, MS_SELECTED
Connection Types: MS_INLINE, MS_SHAPEFILE, MS_TILED_SHAPEFILE, MS_SDE, MS_OGR, MS_TILED_OGR, MS_POSTGIS, MS_WMS, MS_ORACLESPATIAL, MS_WFS, MS_GRATICULE, MS_RASTER, MS_PLUGIN, MS_UNION
Error codes: MS_NOERR, MS_IOERR, MS_MEMERR, MS_TYPEERR, MS_SYMERR, MS_REGEXERR, MS_TTFERR, MS_DBFERR, MS_GDERR, MS_IDENTERR, MS_EOFERR, MS_PROJERR, MS_MISCERR, MS_CGIERR, MS_WEBERR, MS_IMGERR, MS_HASHERR, MS_JOINERR, MS_NOTFOUND, MS_SHPERR, MS_PARSEERR, MS_SDEERR, MS_OGRERR, MS_QUERYERR, MS_WMSERR, MS_WMSCONNERR, MS_ORACLESPATIALERR, MS_WFSERR, MS_WFSCONNERR, MS_MAPCONTEXTERR, MS_HTTPERR, MS_WCSERR
Symbol types: MS_SYMBOL_SIMPLE, MS_SYMBOL_VECTOR, MS_SYMBOL_ELLIPSE, MS_SYMBOL_PIXMAP, MS_SYMBOL_TRUETYPE
Image Mode types (outputFormatObj): MS_IMAGEMODE_PC256, MS_IMAGEMODE_RGB, MS_IMAGEMODE_RGBA, MS_IMAGEMODE_INT16, MS_IMAGEMODE_FLOAT32, MS_IMAGEMODE_BYTE, MS_IMAGEMODE_FEATURE, MS_IMAGEMODE_NULL
Style/Attribue binding: MS_STYLE_BINDING_SIZE, MS_STYLE_BINDING_ANGLE, MS_STYLE_BINDING_COLOR, MS_STYLE_BINDING_OUTLINECOLOR, MS_STYLE_BINDING_SYMBOL, MS_STYLE_BINDING_WIDTH
Label/Attribute binding: MS_LABEL_BINDING_SIZE, MS_LABEL_BINDING_ANGLE, MS_LABEL_BINDING_COLOR, MS_LABEL_BINDING_OUTLINECOLOR, MS_LABEL_BINDING_FONT, MS_LABEL_BINDING_PRIORITY, MS_LABEL_BINDING_POSITION, MS_LABEL_BINDING_SHADOWSIZEX, MS_LABEL_BINDING_SHADOWSIZEY
Alignment: MS_ALIGN_LEFT, MS_ALIGN_CENTER, MS_ALIGN_RIGHT
OwsRequest: MS_GET_REQUEST, MS_POST_REQUEST

Functions ¶

string ms_GetVersion(): Returns the MapServer version and options in a string. This string can be parsed to find out which modules were compiled in, etc.
int ms_GetVersionInt(): Returns the MapServer version number (x.y.z) as an integer (x*10000 + y*100 + z). (New in v5.0) e.g. V5.4.3 would return 50403.
int ms_iogetStdoutBufferBytes(): Writes the current buffer to stdout. The PHP header() function should be used to set the documents’s content-type prior to calling the function. Returns the number of bytes written if output is sent to stdout. See MapScript Wrappers for WxS Services for more info.
void ms_iogetstdoutbufferstring(): Fetch the current stdout buffer contents as a string. This method does not clear the buffer.
void ms_ioinstallstdinfrombuffer(): Installs a mapserver IO handler directing future stdin reading (ie. post request capture) to come from a buffer.
void ms_ioinstallstdouttobuffer(): Installs a mapserver IO handler directing future stdout output to a memory buffer.
void ms_ioresethandlers(): Resets the default stdin and stdout handlers in place of “buffer” based handlers.
string ms_iostripstdoutbuffercontenttype(): Strip the Content-type header off the stdout buffer if it has one, and if a content type is found it is return. Otherwise return false.
void ms_iostripstdoutbuffercontentheaders(): Strip all the Content-* headers off the stdout buffer if it has some.
array ms_TokenizeMap(string map_file_name): Preparses a mapfile through the MapServer parser and return an array with one item for each token from the mapfile. Strings, logical expressions, regex expressions and comments are returned as individual tokens.

Classes ¶

The following class objects are available through PHP MapScript.

classObj ¶

Constructor¶

Class Objects can be returned by the layerObj class, or can be created using:

new classObj(layerObj layer [, classObj class])

or using the old constructor

classObj ms_newClassObj(layerObj layer [, classObj class])

The second argument class is optional. If given, the new class created will be a copy of this class.

Members¶

Type	Name	Note
string	group
string	keyimage
labelObj	label	Removed (6.2) - use addLabel, getLabel, ...
double	maxscaledenom
hashTableObj	metadata
double	minscaledenom
string	name
int	numlabels	read-only (since 6.2)
int	numstyles	read-only
int	status	MS_ON, MS_OFF or MS_DELETE
string	template
string	title
int	type

Methods¶

int addLabel( labelObj label)

Add a labelObj to the classObj and return its index in the labels array.

New in version 6.2.

imageObj createLegendIcon(int width, int height)

Draw the legend icon and return a new imageObj.

int deletestyle(int index)

Delete the style specified by the style index. If there are any style that follow the deleted style, their index will decrease by 1.

int drawLegendIcon(int width, int height, imageObj im, int dstX, int dstY)

Draw the legend icon on im object at dstX, dstY. Returns MS_SUCCESS/MS_FAILURE.

void free()

Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.

string getExpressionString()

Returns the expression string for the class object.

labelObj getLabel(int index)

Return a reference to the labelObj at index in the labels array.

See the labelObj section for more details on multiple class labels.

New in version 6.2.

int getMetaData(string name)

Fetch class metadata entry by name. Returns “” if no entry matches the name. Note that the search is case sensitive.

Note

getMetaData’s query is case sensitive.

styleObj getStyle(int index)

Return the style object using an index. index >= 0 && index < class->numstyles.

string getTextString()

Returns the text string for the class object.

int movestyledown(int index)

The style specified by the style index will be moved down into the array of classes. Returns MS_SUCCESS or MS_FAILURE. ex class->movestyledown(0) will have the effect of moving style 0 up to position 1, and the style at position 1 will be moved to position 0.

int movestyleup(int index)

The style specified by the style index will be moved up into the array of classes. Returns MS_SUCCESS or MS_FAILURE. ex class->movestyleup(1) will have the effect of moving style 1 up to position 0, and the style at position 0 will be moved to position 1.

labelObj removeLabel(int index)

Remove the labelObj at index from the labels array and return a reference to the labelObj. numlabels is decremented, and the array is updated.

New in version 6.2.

int removeMetaData(string name)

Remove a metadata entry for the class. Returns MS_SUCCESS/MS_FAILURE.

int set(string property_name, new_value)

Set object property to a new value.

int setExpression(string expression)

Set the expression string for the class object.

int setMetaData(string name, string value)

Set a metadata entry for the class. Returns MS_SUCCESS/MS_FAILURE.

int settext(string text)

Set the text string for the class object.

int updateFromString(string snippet)

Update a class from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

/*set the color */
$oClass->updateFromString('CLASS STYLE COLOR 255 0 255 END END');

clusterObj ¶

Constructor¶

Instance of clusterObj is always embedded inside the layerObj.

Members¶

Type	Name
double	buffer
double	maxdistance
string	region

Methods¶

string getFilterString(): Returns the expression for this cluster filter or NULL on error.
string getGroupString(): Returns the expression for this cluster group or NULL on error.
int setFilter(string expression): Set layer filter expression.
int setGroup(string expression): Set layer group expression.

colorObj ¶

Constructor¶

Instances of colorObj are always embedded inside other classes.

Members¶

Type	Name
int	red
int	green
int	blue

Methods¶

void setRGB(int red, int green, int blue): Set red, green, blue values.

errorObj ¶

Instances of errorObj are created internally by MapServer as errors happen. Errors are managed as a chained list with the first item being the most recent error. The head of the list can be fetched using ms_GetErrorObj(), and the list can be cleared using ms_ResetErrorList()

Functions¶

errorObj ms_GetErrorObj(): Returns a reference to the head of the list of errorObj.
void ms_ResetErrorList(): Clear the current error list. Note that clearing the list invalidates any errorObj handles obtained via the $error->next() method.

Members¶

Type	Name
int	code //See error code constants above
string	message
string	routine

Method¶

errorObj next(): Returns the next errorObj in the list, or NULL if we reached the end of the list.

Example¶

This example draws a map and reports all errors generated during the draw() call, errors can potentially come from multiple layers.

ms_ResetErrorList();
$img = $map->draw();
$error = ms_GetErrorObj();
while($error && $error->code != MS_NOERR)
{
  printf("Error in %s: %s<br>\n", $error->routine, $error->message);
  $error = $error->next();
}

gridObj ¶

Constructor¶

The grid is always embedded inside a layer object defined as a grid (layer->connectiontype = MS_GRATICULE) (for more docs : https://github.com/mapserver/mapserver/wiki/MapServerGrid)

A layer can become a grid layer by adding a grid object to it using : ms_newGridObj(layerObj layer)

$oLayer = ms_newlayerobj($oMap);
$oLayer->set("name", "GRID");
ms_newgridobj($oLayer);
$oLayer->grid->set("labelformat", "DDMMSS");

Members¶

Type	Name
string	labelformat
double	maxacrs
double	maxinterval
double	maxsubdivide
double	minarcs
double	mininterval
double	minsubdivide

Methods¶

int set(string property_name, new_value): Set object property to a new value.

hashTableObj ¶

Constructor¶

Instance of hashTableObj is always embedded inside the classObj, layerObj, mapObj and webObj. It is uses a read only.

$hashTable = $oLayer->metadata;
$key = null;
while ($key = $hashTable->nextkey($key))
  echo "Key: ".$key." value: ".$hashTable->get($key)."<br/>";

Methods¶

void clear(): Clear all items in the hashTable (To NULL).
string get(string key): Fetch class metadata entry by name. Returns “” if no entry matches the name. Note that the search is case sensitive.
string nextkey(string previousKey): Return the next key or first key if previousKey = NULL. Return NULL if no item is in the hashTable or end of hashTable is reached
int remove(string key): Remove a metadata entry in the hashTable. Returns MS_SUCCESS/MS_FAILURE.
int set(string key, string value): Set a metadata entry in the hashTable. Returns MS_SUCCESS/MS_FAILURE.

imageObj ¶

Constructor¶

Instances of imageObj are always created by the mapObj class methods.

Members¶

Type	Name	Note
int	width	read-only
int	height	read-only
int	resolution	read-only
int	resolutionfactor	read-only
string	imagepath
string	imageurl

Methods¶

void pasteImage(imageObj srcImg, int transparentColorHex [[, int dstX, int dstY], int angle]): Copy srcImg on top of the current imageObj. transparentColorHex is the color (in 0xrrggbb format) from srcImg that should be considered transparent (i.e. those pixels won’t be copied). Pass -1 if you don’t want any transparent color. If optional dstx,dsty are provided then it defines the position where the image should be copied (dstx,dsty = top-left corner position). The optional angle is a value between 0 and 360 degrees to rotate the source image counterclockwise. Note that if an angle is specified (even if its value is zero) then the dstx and dsty coordinates specify the CENTER of the destination area. Note: this function works only with 8 bits GD images (PNG or GIF).
int saveImage([string filename, MapObj oMap]): Writes image object to specified filename. Passing no filename or an empty filename sends output to stdout. In this case, the PHP header() function should be used to set the document’s content-type prior to calling saveImage(). The output format is the one that is currently selected in the map file. The second argument oMap is not manadatory. It is usful when saving to formats like GTIFF that needs georeference informations contained in the map file. On success, it returns either MS_SUCCESS if writing to an external file, or the number of bytes written if output is sent to stdout.
string saveWebImage(): Writes image to temp directory. Returns image URL. The output format is the one that is currently selected in the map file.

labelcacheMemberObj ¶

Accessible only through the mapObj (map->getLabel()).

Members¶

Type	Name	Note
int	classindex	read-only
int	featuresize	read-only
int	layerindex	read-only
int	markerid	read-only
int	numstyles	read-only
int	shapeindex	read-only
int	status	read-only
string	text	read-only
int	tileindex	read-only

Method¶

None

labelcacheObj ¶

Accessible only through the mapObj (map->labelcache). This object is only used to give the possiblity to free the label cache (map->labelcache->freeCache())

Method¶

boolean freeCache(): Free the label cache. Always returns MS_SUCCESS. Ex : map->labelcache->freeCache();

labelObj ¶

Constructor¶

labelObj are always embedded inside other classes.

new labelObj()

Members¶

Type	Name
int	align
double	angle
int	anglemode
int	antialias
int	autominfeaturesize
colorObj	backgroundcolor (deprecated since 6.0)
colorObj	backgroundshadowcolor (deprecated since 6.0)
int	backgroundshadowsizex (deprecated since 6.0)
int	backgroundshadowsizey (deprecated since 6.0)
int	buffer
colorObj	color
string	encoding
string	font
int	force
int	maxlength
int	maxsize
int	mindistance
int	minfeaturesize
int	minlength
int	minsize
int	numstyles
int	offsetx
int	offsety
colorObj	outlinecolor
int	outlinewidth
int	partials
int	position
int	priority
int	repeatdistance
colorObj	shadowcolor
int	shadowsizex
int	shadowsizey
int	size
int	type
int	wrap

Methods¶

int deleteStyle(int index)

Delete the style specified by the style index. If there are any style that follow the deleted style, their index will decrease by 1.

void free()

Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.

string getBinding(const labelbinding)

Get the attribute binding for a specified label property. Returns NULL if there is no binding for this property.

Example:

$oLabel->setbinding(MS_LABEL_BINDING_COLOR, "FIELD_NAME_COLOR");
echo $oLabel->getbinding(MS_LABEL_BINDING_COLOR); // FIELD_NAME_COLOR

styleObj getStyle(int index)

Return the style object using an index. index >= 0 && index < label->numstyles.

int moveStyleDown(int index)

The style specified by the style index will be moved down into the array of classes. Returns MS_SUCCESS or MS_FAILURE. ex label->movestyledown(0) will have the effect of moving style 0 up to position 1, and the style at position 1 will be moved to position 0.

int moveStyleUp(int index)

The style specified by the style index will be moved up into the array of classes. Returns MS_SUCCESS or MS_FAILURE. ex label->movestyleup(1) will have the effect of moving style 1 up to position 0, and the style at position 0 will be moved to position 1.

int removeBinding(const labelbinding)

Remove the attribute binding for a specfiled style property.

Example:

$oStyle->removebinding(MS_LABEL_BINDING_COLOR);

int set(string property_name, new_value)

Set object property to a new value.

int setBinding(const labelbinding, string value)

Set the attribute binding for a specified label property.

Example:

$oLabel->setbinding(MS_LABEL_BINDING_COLOR, "FIELD_NAME_COLOR");

This would bind the color parameter with the data (ie will extract the value of the color from the field called “FIELD_NAME_COLOR”

int updateFromString(string snippet)

Update a label from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

layerObj ¶

Constructor¶

Layer Objects can be returned by the mapObj class, or can be created using:

layerObj ms_newLayerObj(MapObj map [, layerObj layer])

A second optional argument can be given to ms_newLayerObj() to create the new layer as a copy of an existing layer. If a layer is given as argument then all members of a this layer will be copied in the new layer created.

Members¶

Type	Name	Note
int	annotate
hashTableObj	bindvals
string	classgroup
string	classitem
clusterObj	cluster
string	connection
int	connectiontype	read-only, use setConnectionType() to set it
string	data
int	debug
int	dump	deprecated since 6.0
string	filteritem
string	footer
gridObj	grid	only available on a layer defined as grid (MS_GRATICULE)
string	group
string	header
int	index	read-only
int	labelcache
string	labelitem
double	labelmaxscaledenom
double	labelminscaledenom
string	labelrequires
string	mask
int	maxfeatures
double	maxscaledenom
hashTableObj	metadata
double	minscaledenom
string	name
int	num_processing
int	numclasses	read-only
colorObj	offsite
int	opacity
projectionObj	projection
int	postlabelcache
string	requires
int	sizeunits
int	startindex
int	status	MS_ON, MS_OFF, MS_DEFAULT or MS_DELETE
string	styleitem
double	symbolscaledenom
string	template
string	tileindex
string	tileitem
double	tolerance
int	toleranceunits
int	transform
int	type

Methods¶

int addFeature(shapeObj shape)

Add a new feature in a layer. Returns MS_SUCCESS or MS_FAILURE on error.

int applySLD(string sldxml, string namedlayer)

Apply the SLD document to the layer object. The matching between the sld document and the layer will be done using the layer’s name. If a namedlayer argument is passed (argument is optional), the NamedLayer in the sld that matchs it will be used to style the layer. See SLD HowTo for more information on the SLD support.

int applySLDURL(string sldurl, string namedlayer)

Apply the SLD document pointed by the URL to the layer object. The matching between the sld document and the layer will be done using the layer’s name. If a namedlayer argument is passed (argument is optional), the NamedLayer in the sld that matchs it will be used to style the layer. See SLD HowTo for more information on the SLD support.

void clearProcessing()

Clears all the processing strings.

void close()

Close layer previously opened with open().

int draw(imageObj image)

Draw a single layer, add labels to cache if required. Returns MS_SUCCESS or MS_FAILURE on error.

int drawQuery(imageObj image)

Draw query map for a single layer.

string executeWFSGetfeature()

Executes a GetFeature request on a WFS layer and returns the name of the temporary GML file created. Returns an empty string on error.

void free()

Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.

string generateSLD()

Returns an SLD XML string based on all the classes found in the layer (the layer must have STATUS on).

classObj getClass(int classIndex)

Returns a classObj from the layer given an index value (0=first class)

int getClassIndex(shape [, classgroup, numclasses])

Get the class index of a shape for a given scale. Returns -1 if no class matches. classgroup is an array of class ids to check (Optionnal). numclasses is the number of classes that the classgroup array contains. By default, all the layer classes will be checked.

rectObj getExtent()

Returns the layer’s data extents or NULL on error. If the layer’s EXTENT member is set then this value is used, otherwise this call opens/closes the layer to read the extents. This is quick on shapefiles, but can be an expensive operation on some file formats or data sources. This function is safe to use on both opened or closed layers: it is not necessary to call open()/close() before/after calling it.

string getFilterString()

Returns the expression for this layer or NULL on error.

array getGridIntersectionCoordinates()

Returns an array containing the grid intersection coordinates. If there are no coordinates, it returns an empty array.

array getItems()

Returns an array containing the items. Must call open function first. If there are no items, it returns an empty array.

int getMetaData(string name)

Fetch layer metadata entry by name. Returns “” if no entry matches the name. Note that the search is case sensitive.

Note

getMetaData’s query is case sensitive.

int getNumResults()

Returns the number of results in the last query.

array getProcessing()

Returns an array containing the processing strings. If there are no processing strings, it returns an empty array.

string getProjection()

Returns a string representation of the projection. Returns NULL on error or if no projection is set.

resultObj getResult(int index)

Returns a resultObj by index from a layer object with index in the range 0 to numresults-1. Returns a valid object or FALSE(0) if index is invalid.

rectObj getResultsBounds()

Returns the bounding box of the latest result.

shapeObj getShape(resultObj result])

If the resultObj passed has a valid resultindex, retrieve shapeObj from a layer’s resultset. (You get it from the resultObj returned by getResult() for instance). Otherwise, it will do a single query on the layer to fetch the shapeindex

$map = new mapObj("gmap75.map");
$l = $map->getLayerByName("popplace");
$l->queryByRect($map->extent);
for ($i=0; $i<$l->getNumResults();$i++){
  $s = $l->getShape($l->getResult($i));
  echo $s->getValue($l,"Name");
  echo "\n";
}

string getWMSFeatureInfoURL(int clickX, int clickY, int featureCount, string infoFormat)

Returns a WMS GetFeatureInfo URL (works only for WMS layers) clickX, clickY is the location of to query in pixel coordinates with (0,0) at the top left of the image. featureCount is the number of results to return. infoFormat is the format the format in which the result should be requested. Depends on remote server’s capabilities. MapServer WMS servers support only “MIME” (and should support “GML.1” soon). Returns “” and outputs a warning if layer is not a WMS layer or if it is not queriable.

boolean isVisible()

Returns MS_TRUE/MS_FALSE depending on whether the layer is currently visible in the map (i.e. turned on, in scale, etc.).

int moveclassdown(int index)

The class specified by the class index will be moved down into the array of layers. Returns MS_SUCCESS or MS_FAILURE. ex layer->moveclassdown(0) will have the effect of moving class 0 up to position 1, and the class at position 1 will be moved to position 0.

int moveclassup(int index)

The class specified by the class index will be moved up into the array of layers. Returns MS_SUCCESS or MS_FAILURE. ex layer->moveclassup(1) will have the effect of moving class 1 up to position 0, and the class at position 0 will be moved to position 1.

int open()

Open the layer for use with getShape(). Returns MS_SUCCESS/MS_FAILURE.

shapeobj nextShape()

Called after msWhichShapes has been called to actually retrieve shapes within a given area. Returns a shape object or NULL on error.

$map = ms_newmapobj("d:/msapps/gmap-ms40/htdocs/gmap75.map");
$layer = $map->getLayerByName('road');
$status = $layer->open();
$status = $layer->whichShapes($map->extent);
while ($shape = $layer->nextShape())
{
  echo $shape->index ."<br>\n";
}
$layer->close();

int queryByAttributes(string qitem, string qstring, int mode)

Query layer for shapes that intersect current map extents. qitem is the item (attribute) on which the query is performed, and qstring is the expression to match. The query is performed on all the shapes that are part of a CLASS that contains a TEMPLATE value or that match any class in a layer that contains a LAYER TEMPLATE value. Note that the layer’s FILTER/FILTERITEM are ignored by this function. Mode is MS_SINGLE or MS_MULTIPLE depending on number of results you want. Returns MS_SUCCESS if shapes were found or MS_FAILURE if nothing was found or if some other error happened (note that the error message in case nothing was found can be avoided in PHP using the ‘@’ control operator).

int queryByFeatures(int slayer)

Perform a query set based on a previous set of results from another layer. At present the results MUST be based on a polygon layer. Returns MS_SUCCESS if shapes were found or MS_FAILURE if nothing was found or if some other error happened (note that the error message in case nothing was found can be avoided in PHP using the ‘@’ control operator).

int queryByPoint(pointObj point, int mode, double buffer)

Query layer at point location specified in georeferenced map coordinates (i.e. not pixels). The query is performed on all the shapes that are part of a CLASS that contains a TEMPLATE value or that match any class in a layer that contains a LAYER TEMPLATE value. Mode is MS_SINGLE or MS_MULTIPLE depending on number of results you want. Passing buffer -1 defaults to tolerances set in the map file (in pixels) but you can use a constant buffer (specified in ground units) instead. Returns MS_SUCCESS if shapes were found or MS_FAILURE if nothing was found or if some other error happened (note that the error message in case nothing was found can be avoided in PHP using the ‘@’ control operator).

int queryByRect(rectObj rect)

Query layer using a rectangle specified in georeferenced map coordinates (i.e. not pixels). The query is performed on all the shapes that are part of a CLASS that contains a TEMPLATE value or that match any class in a layer that contains a LAYER TEMPLATE value. Returns MS_SUCCESS if shapes were found or MS_FAILURE if nothing was found or if some other error happened (note that the error message in case nothing was found can be avoided in PHP using the ‘@’ control operator).

int queryByShape(shapeObj shape)

Query layer based on a single shape, the shape has to be a polygon at this point. Returns MS_SUCCESS if shapes were found or MS_FAILURE if nothing was found or if some other error happened (note that the error message in case nothing was found can be avoided in PHP using the ‘@’ control operator).

classObj removeClass(int index)

Removes the class indicated and returns a copy, or NULL in the case of a failure. Note that subsequent classes will be renumbered by this operation. The numclasses field contains the number of classes available.

int removeMetaData(string name)

Remove a metadata entry for the layer. Returns MS_SUCCESS/MS_FAILURE.

int set(string property_name, new_value)

Set object property to a new value.

int setConnectionType(int connectiontype [,string plugin_library])

Changes the connectiontype of the layer and recreates the vtable according to the new connection type. This method should be used instead of setting the connectiontype parameter directly. In the case when the layer.connectiontype = MS_PLUGIN the plugin_library parameter should also be specified so as to select the library to load by MapServer. For the other connection types this parameter is not used.

int setFilter(string expression)

Set layer filter expression.

int setMetaData(string name, string value)

Set a metadata entry for the layer. Returns MS_SUCCESS/MS_FAILURE.

int setProcessing(string)

Add the string to the processing string list for the layer. The layer->num_processing is incremented by 1. Returns MS_SUCCESS or MS_FAILURE on error.

$oLayer->setprocessing("SCALE_1=AUTO");
$oLayer->setprocessing("SCALE_2=AUTO");

int setProjection(string proj_params)

Set layer projection and coordinate system. Parameters are given as a single string of comma-delimited PROJ.4 parameters. Returns MS_SUCCESS or MS_FAILURE on error.

int setWKTProjection(string proj_params)

Same as setProjection(), but takes an OGC WKT projection definition string as input.

Note

setWKTProjection requires GDAL support

int updateFromString(string snippet)

Update a layer from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

/*modify the name */
$oLayer->updateFromString('LAYER NAME land_fn2 END');
/*add a new class*/
$oLayer->updateFromString('LAYER CLASS STYLE COLOR 255 255 0 END END END');

int whichshapes(rectobj)

Performs a spatial, and optionally an attribute based feature search. The function basically prepares things so that candidate features can be accessed by query or drawing functions (eg using nextshape function). Returns MS_SUCCESS, MS_FAILURE or MS_DONE. MS_DONE is returned if the layer extent does not overlap the rectObj.

legendObj ¶

Constructor¶

Instances of legendObj are always are always embedded inside the mapObj.

Members¶

Type	Name	Note
int	height
colorObj	imagecolor
int	keysizex
int	keysizey
int	keyspacingx
int	keyspacingy
labelObj	label
colorObj	outlinecolor	Color of outline of box, -1 for no outline
int	position	for embeded legends, MS_UL, MS_UC, ...
int	postlabelcache	MS_TRUE, MS_FALSE
int	status	MS_ON, MS_OFF, MS_EMBED
string	template
int	width

Methods¶

void free(): Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.
int set(string property_name, new_value): Set object property to a new value.
int updateFromString(string snippet): Update a legend from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

lineObj ¶

Constructor¶

new lineObj()

or using the old constructor

LineObj ms_newLineObj()

Members¶

Type	Name	Note
int	numpoints	read-only

Methods¶

int add(pointObj point): Add a point to the end of line. Returns MS_SUCCESS/MS_FAILURE.
int addXY(double x, double y [, double m]): Add a point to the end of line. Returns MS_SUCCESS/MS_FAILURE.

Note

the 3rd parameter m is used for measured shape files only. It is not mandatory.
int addXYZ(double x, double y, double z [, double m]): Add a point to the end of line. Returns MS_SUCCESS/MS_FAILURE.

Note

the 4th parameter m is used for measured shape files only. It is not mandatory.
PointObj point(int i): Returns a reference to point number i.
int project(projectionObj in, projectionObj out): Project the line from “in” projection (1st argument) to “out” projection (2nd argument). Returns MS_SUCCESS/MS_FAILURE.

mapObj ¶

Constructor¶

new mapObj(string map_file_name [, string new_map_path])

or using the old constructors

mapObj ms_newMapObj(string map_file_name [, string new_map_path]): Returns a new object to deal with a MapServer map file.
mapObj ms_newMapObjFromString(string map_file_string [, string new_map_path]): Construct a new mapObj from a mapfile string. Returns a new object to deal with a MapServer map file.

Note

By default, the SYMBOLSET, FONTSET, and other paths in the mapfile are relative to the mapfile location. If new_map_path is provided then this directory will be used as the base path for all the rewlative paths inside the mapfile.

Members¶

Type	Name	Note
double	cellsize
int	debug
double	defresolution	pixels per inch, defaults to 72
rectObj	extent;
string	fontsetfilename	read-only, set by setFontSet()
int	height	see setSize()
colorObj	imagecolor
int	keysizex
int	keysizey
int	keyspacingx
int	keyspacingy
labelcacheObj	labelcache	no members. Used only to free the label cache (map->labelcache->free()
legendObj	legend
string	mappath
int	maxsize
hashTableObj	metadata
string	name
int	numlayers	read-only
outputformatObj	outputformat
projectionObj	projection
querymapObj	querymap
referenceMapObj	reference
double	resolution	pixels per inch, defaults to 72
scalebarObj	scalebar
double	scaledenom	read-only, set by drawMap()
string	shapepath
int	status
string	symbolsetfilename	read-only, set by setSymbolSet()
int	units	map units type
webObj	web
int	width	see setSize()

Methods¶

int applyconfigoptions()

Applies the config options set in the map file. For example setting the PROJ_LIB using the setconfigoption only modifies the value in the map object. applyconfigoptions will actually change the PROJ_LIB value that will be used when dealing with projection.

int applySLD(string sldxml)

Apply the SLD document to the map file. The matching between the sld document and the map file will be done using the layer’s name. See SLD HowTo for more information on the SLD support.

int applySLDURL(string sldurl)

Apply the SLD document pointed by the URL to the map file. The matching between the sld document and the map file will be done using the layer’s name. See SLD HowTo for more information on the SLD support.

imageObj draw()

Render map and return an image object or NULL on error.

int drawLabelCache(imageObj image)

Renders the labels for a map. Returns MS_SUCCESS or MS_FAILURE on error.

imageObj drawLegend()

Render legend and return an image object.

imageObj drawQuery()

Render a query map and return an image object or NULL on error.

imageObj drawReferenceMap()

Render reference map and return an image object.

imageObj drawScaleBar()

Render scale bar and return an image object.

int embedLegend(imageObj image)

embeds a legend. Actually the legend is just added to the label cache so you must invoke drawLabelCache() to actually do the rendering (unless postlabelcache is set in which case it is drawn right away). Returns MS_SUCCESS or MS_FAILURE on error.

int embedScalebar(imageObj image)

embeds a scalebar. Actually the scalebar is just added to the label cache so you must invoke drawLabelCache() to actually do the rendering (unless postlabelcache is set in which case it is drawn right away). Returns MS_SUCCESS or MS_FAILURE on error.

void free()

Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.

void freeQuery(layerindex)

Frees the query result on a specified layer. If the layerindex is -1, all queries on layers will be freed.

string generateSLD()

Returns an SLD XML string based on all the classes found in all the layers that have STATUS on.

array getAllGroupNames()

Return an array containing all the group names used in the layers. If there are no groups, it returns an empty array.

array getAllLayerNames()

Return an array containing all the layer names. If there are no layers, it returns an empty array.

colorObj getColorbyIndex(int iCloIndex)

Returns a colorObj corresponding to the color index in the palette.

string getConfigOption(string key)

Returns the config value associated with the key. Returns an empty sting if key not found.

labelcacheMemberObj getLabel(int index)

Returns a labelcacheMemberObj from the map given an index value (0=first label). Labelcache has to be enabled.

while ($oLabelCacheMember = $oMap->getLabel($i)) {
  /* do something with the labelcachemember */
  ++$i;
}

layerObj getLayer(int index)

Returns a layerObj from the map given an index value (0=first layer)

layerObj getLayerByName(string layer_name)

Returns a layerObj from the map given a layer name. Returns NULL if layer doesn’t exist.

array getLayersDrawingOrder()

Return an array containing layer’s index in the order which they are drawn. If there are no layers, it returns an empty array.

array getLayersIndexByGroup(string groupname)

Return an array containing all the layer’s indexes given a group name. If there are no layers, it returns an empty array.

int getMetaData(string name)

Fetch metadata entry by name (stored in the WEB object in the map file). Returns “” if no entry matches the name.

Note

getMetaData’s query is case sensitive.

int getNumSymbols()

Return the number of symbols in map.

string getProjection()

Returns a string representation of the projection. Returns NULL on error or if no projection is set.

int getSymbolByName(string symbol_name)

Returns the symbol index using the name.

symbol getSymbolObjectById(int symbolid)

Returns the symbol object using a symbol id. Refer to the symbol object reference section for more details.

int insertLayer( layerObj layer [, int nIndex=-1 ] )

Insert a copy of layer into the Map at index nIndex. The default value of nIndex is -1, which means the last possible index. Returns the index of the new Layer, or -1 in the case of a failure.

int loadMapContext(string filename [, boolean unique_layer_name])

Available only if WMS support is enabled. Load a WMS Map Context XML file into the current mapObj. If the map already contains some layers then the layers defined in the WMS Map context document are added to the current map. The 2nd argument unique_layer_name is optional and if set to MS_TRUE layers created will have a unique name (unique prefix added to the name). If set to MS_FALSE the layer name will be the the same name as in the context. The default value is MS_FALSE. Returns MS_SUCCESS/MS_FAILURE.

int loadOWSParameters(owsrequest request, string version)

Load OWS request parameters (BBOX, LAYERS, &c.) into map. Returns MS_SUCCESS or MS_FAILURE. 2nd argument version is not mandatory. If not given, the version will be set to 1.1.1

int loadQuery(filename)

Loads a query from a file. Returns MS_SUCESS or MS_FAILURE. To be used with savequery.

int moveLayerDown(int layerindex)

Move layer down in the hierarcy of drawing. Returns MS_SUCCESS or MS_FAILURE on error.

int moveLayerUp(int layerindex)

Move layer up in the hierarcy of drawing. Returns MS_SUCCESS or MS_FAILURE on error.

int offsetExtent(double x, double y)

Offset the map extent based on the given distances in map coordinates. Returns MS_SUCCESS or MS_FAILURE.

int owsDispatch(owsrequest request)

Processes and executes the passed OpenGIS Web Services request on the map. Returns MS_DONE (2) if there is no valid OWS request in the req object, MS_SUCCESS (0) if an OWS request was successfully processed and MS_FAILURE (1) if an OWS request was not successfully processed. OWS requests include WMS, WFS, WCS and SOS requests supported by MapServer. Results of a dispatched request are written to stdout and can be captured using the msIO services (ie. ms_ioinstallstdouttobuffer() and ms_iogetstdoutbufferstring())

imageObj prepareImage()

Return a blank image object.

void prepareQuery()

Calculate the scale of the map and set map->scaledenom.

string processLegendTemplate(array params)

Process legend template files and return the result in a buffer.

outputformatObj ¶

Constructor¶

Instance of outputformatObj is always embedded inside the mapObj. It is uses a read only.

No constructor available (coming soon, see ticket 979)

Members¶

Type	Name	Note
string	driver
string	extension
int	imagemode	MS_IMAGEMODE_* value.
string	mimetype
string	name
int	renderer
int	transparent

Methods¶

string getOption(string property_name)

Returns the associated value for the format option property passed as argument. Returns an empty string if property not found.

int set(string property_name, new_value)

Set object property to a new value.

void setOption(string property_name, string new_value)

Add or Modify the format option list. return true on success.

$oMap->outputformat->setOption("OUTPUT_TYPE", "RASTER");

int validate()

Checks some internal consistency issues, Returns MS_SUCCESS or MS_FAILURE. Some problems are fixed up internally. May produce debug output if issues encountered.

OwsrequestObj ¶

Constructor¶

new OWSRequestObj()

or using the old constructor

request = ms_newOwsrequestObj();

Create a new ows request object.

Members¶

Type	Name
int	numparams (read-only)
int	type (read-only): MS_GET_REQUEST or MS_POST_REQUEST

Methods¶

int addParameter(string name, string value)

Add a request parameter, even if the parameter key was previousely set. This is useful when multiple parameters with the same key are required. For example :

$request->addparameter('SIZE', 'x(100)');
$request->addparameter('SIZE', 'y(100)');

string getName(int index)

Return the name of the parameter at index in the request’s array of parameter names.

string getValue(int index)

Return the value of the parameter at index in the request’s array of parameter values.

string getValueByName(string name)

Return the value associated with the parameter name.

int loadParams()

Initializes the OWSRequest object from the cgi environment variables REQUEST_METHOD, QUERY_STRING and HTTP_COOKIE. Returns the number of name/value pairs collected.

int setParameter(string name, string value)

Set a request parameter. For example :

$request->setparameter('REQUEST', 'GetMap');

pointObj ¶

Constructor¶

new pointObj()

or using the old constructor

PointObj ms_newPointObj()

Members¶

Type	Name	Note
double	x
double	y
double	z	used for 3d shape files. set to 0 for other types
double	m	used only for measured shape files - set to 0 for other types

Methods¶

double distanceToLine(pointObject p1, pointObject p2): Calculates distance between a point ad a lined defined by the two points passed in argument.
double distanceToPoint(pointObj poPoint): Calculates distance between two points.
double distanceToShape(shapeObj shape): Calculates the minimum distance between a point and a shape.
int draw(mapObj map, layerObj layer, imageObj img, int class_index, string text): Draws the individual point using layer. The class_index is used to classify the point based on the classes defined for the layer. The text string is used to annotate the point. Returns MS_SUCCESS/MS_FAILURE.
int project(projectionObj in, projectionObj out): Project the point from “in” projection (1st argument) to “out” projection (2nd argument). Returns MS_SUCCESS/MS_FAILURE.
int setXY(double x, double y [, double m]): Set X,Y coordinate values.

Note

the 3rd parameter m is used for measured shape files only. It is not mandatory.
int setXYZ(double x, double y , double z, [, double m]): Set X,Y,Z coordinate values.

Note

the 4th parameter m is used for measured shape files only. It is not mandatory.

projectionObj ¶

Constructor¶

new projectionObj(string projectionString)

or using the old constructor

ProjectionObj ms_newProjectionObj(string projectionString)

Creates a projection object based on the projection string passed as argument.

$projInObj = ms_newprojectionobj("proj=latlong")

will create a geographic projection class.

The following example will convert a lat/long point to an LCC projection:

$projInObj = ms_newprojectionobj("proj=latlong");
$projOutObj = ms_newprojectionobj("proj=lcc,ellps=GRS80,lat_0=49,".
                                  "lon_0=-95,lat_1=49,lat_2=77");
$poPoint = ms_newpointobj();
$poPoint->setXY(-92.0, 62.0);
$poPoint->project($projInObj, $projOutObj);

Methods¶

int getUnits(): Returns the units of a projection object. Returns -1 on error.

querymapObj ¶

Constructor¶

Instances of querymapObj are always are always embedded inside the mapObj.

Members¶

Type	Name	Note
colorObj	color
int	height
int	width
int	style	MS_NORMAL, MS_HILITE, MS_SELECTED

Methods¶

void free(): Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.
int set(string property_name, new_value): Set object property to a new value.
int updateFromString(string snippet): Update a queryMap object from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

rectObj ¶

Constructor¶

rectObj are sometimes embedded inside other objects. New ones can also be created with:

new rectObj()

or using the old constructor

RectObj ms_newRectObj()

Note

the members (minx, miny, maxx ,maxy) are initialized to -1;

Members:¶

Type	Name
double	minx
double	miny
double	maxx
double	maxy

Methods¶

int draw(mapObj map, layerObj layer, imageObj img, int class_index, string text): Draws the individual rectangle using layer. The class_index is used to classify the rectangle based on the classes defined for the layer. The text string is used to annotate the rectangle. Returns MS_SUCCESS/MS_FAILURE.
double fit(int width, int height): Adjust extents of the rectangle to fit the width/height specified.
int project(projectionObj in, projectionObj out): Project the rectangle from “in” projection (1st argument) to “out” projection (2nd argument). Returns MS_SUCCESS/MS_FAILURE.
int set(string property_name, new_value): Set object property to a new value.
void setextent(double minx, double miny, double maxx, double maxy): Set the rectangle extents.

referenceMapObj ¶

Constructor¶

Instances of referenceMapObj are always embedded inside the mapObj.

Members¶

Type	Name
ColorObj	color
int	height
rectObj	extent
string	image
int	marker
string	markername
int	markersize
int	maxboxsize
int	minboxsize
ColorObj	outlinecolor
int	status
int	width

Methods¶

void free(): Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.
int set(string property_name, new_value): Set object property to a new value.
int updateFromString(string snippet): Update a referenceMap object from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

resultObj ¶

Constructor¶

new resultObj(int shapeindex)

or using the layerObj‘s getResult() method.

Members¶

Type	Name	Note
int	classindex	read-only
int	resultindex	read-only
int	shapeindex	read-only
int	tileindex	read-only

Method¶

None

scalebarObj ¶

Constructor¶

Instances of scalebarObj are always embedded inside the mapObj.

Members¶

Type	Name	Note
int	align
colorObj	backgroundcolor
colorObj	color
int	height
colorObj	imagecolor
int	intervals
labelObj	label
colorObj	outlinecolor
int	position	for embeded scalebars, MS_UL, MS_UC, ...
int	postlabelcache
int	status	MS_ON, MS_OFF, MS_EMBED
int	style
int	units
int	width

Methods¶

void free(): Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.
int set(string property_name, new_value): Set object property to a new value.
int setImageColor(int red, int green, int blue): Sets the imagecolor propery (baclground) of the object. Returns MS_SUCCESS or MS_FAILURE on error.
int updateFromString(string snippet): Update a scalebar from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

shapefileObj ¶

Constructor¶

new shapeFileObj(string filename, int type)

or using the old constructor

shapefileObj ms_newShapefileObj(string filename, int type)

Opens a shapefile and returns a new object to deal with it. Filename should be passed with no extension. To create a new file (or overwrite an existing one), type should be one of MS_SHP_POINT, MS_SHP_ARC, MS_SHP_POLYGON or MS_SHP_MULTIPOINT. Pass type as -1 to open an existing file for read-only access, and type=-2 to open an existing file for update (append).

Members¶

Type	Name	Note
rectObj	bounds	read-only
int	numshapes	read-only
string	source	read-only
int	type	read-only

Methods¶

int addPoint(pointObj point): Appends a point to an open shapefile.
int addShape(shapeObj shape): Appends a shape to an open shapefile.
void free(): Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.

Note

The shape file is closed (and changes committed) when the object is destroyed. You can explicitly close and save the changes by calling $shapefile->free(); unset($shapefile), which will also free the php object.
rectObj getExtent(int i): Retrieve a shape’s bounding box by index.
shapeObj getPoint(int i): Retrieve point by index.
shapeObj getShape(int i): Retrieve shape by index.
shapeObj getTransformed(mapObj map, int i): Retrieve shape by index.

shapeObj ¶

Constructor¶

new shapeObj(int type)

or using the old constructor

ShapeObj ms_newShapeObj(int type)

‘type’ is one of MS_SHAPE_POINT, MS_SHAPE_LINE, MS_SHAPE_POLYGON or MS_SHAPE_NULL

ShapeObj ms_shapeObjFromWkt(string wkt)

Creates new shape object from WKT string.

Members¶

Type	Name	Note
rectObj	bounds	read-only
int	classindex
int	index
int	numlines	read-only
int	numvalues	read-only
int	tileindex	read-only
string	text
int	type	read-only
array	values	read-only

The values array is an associative array with the attribute values for this shape. It is set only on shapes obtained from layer->getShape(). The key to the values in the array is the attribute name, e.g.

$population = $shape->values["Population"];

Methods¶

int add(lineObj line): Add a line (i.e. a part) to the shape.
shapeobj boundary(): Returns the boundary of the shape. Only available if php/mapscript is built with GEOS library.
shapeobj buffer(width): Returns a new buffered shapeObj based on the supplied distance (given in the coordinates of the existing shapeObj). Only available if php/mapscript is built with GEOS library.
int containsShape(shapeobj shape2): Returns true if shape2 passed as argument is entirely within the shape. Else return false. Only available if php/mapscript is built with GEOS library.
shapeobj convexhull(): Returns a shape object representing the convex hull of shape. Only available if php/mapscript is built with GEOS library.
boolean contains(pointObj point): Returns MS_TRUE if the point is inside the shape, MS_FALSE otherwise.
int crosses(shapeobj shape): Returns true if the shape passed as argument crosses the shape. Else return false. Only available if php/mapscript is built with GEOS library.
shapeobj difference(shapeobj shape): Returns a shape object representing the difference of the shape object with the one passed as parameter. Only available if php/mapscript is built with GEOS library.
int disjoint(shapeobj shape): Returns true if the shape passed as argument is disjoint to the shape. Else return false. Only available if php/mapscript is built with GEOS library.
int draw(mapObj map, layerObj layer, imageObj img): Draws the individual shape using layer. Returns MS_SUCCESS/MS_FAILURE.
int equals(shapeobj shape): Returns true if the shape passed as argument is equal to the shape (geometry only). Else return false. Only available if php/mapscript is built with GEOS library.
void free(): Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.
double getArea(): Returns the area of the shape (if applicable). Only available if php/mapscript is built with GEOS library.
pointObj getCentroid(): Returns a point object representing the centroid of the shape. Only available if php/mapscript is built with GEOS library.
pointObj getLabelPoint(): Returns a point object with coordinates suitable for labelling the shape.
double getLength(): Returns the length (or perimeter) of the shape. Only available if php/mapscript is built with GEOS library.
pointObj getMeasureUsingPoint(pointObject point): Apply only on Measured shape files. Given an XY Location, find the nearest point on the shape object. Return a point object of this point with the m value set.
pointObj getPointUsingMeasure(double m): Apply only on Measured shape files. Given a measure m, retun the corresponding XY location on the shapeobject.
string getValue(layerObj layer, string filedname): Returns the value for a given field name.
shapeobj intersection(shapeobj shape): Returns a shape object representing the intersection of the shape object with the one passed as parameter. Only available if php/mapscript is built with GEOS library.
boolean intersects(shapeObj shape): Returns MS_TRUE if the two shapes intersect, MS_FALSE otherwise.
LineObj line(int i): Returns a reference to line number i.
int overlaps(shapeobj shape): Returns true if the shape passed as argument overlaps the shape. Else returns false. Only available if php/mapscript is built with GEOS library.
int project(projectionObj in, projectionObj out): Project the shape from “in” projection (1st argument) to “out” projection (2nd argument). Returns MS_SUCCESS/MS_FAILURE.
int set(string property_name, new_value): Set object property to a new value.
int setBounds(): Updates the bounds property of the shape. Must be called to calculate new bounding box after new parts have been added.
shapeObj simplify(double tolerance): Given a tolerance, returns a simplified shape object or NULL on error. Only available if php/mapscript is built with GEOS library (>=3.0).
shapeobj symdifference(shapeobj shape): Returns the computed symmetric difference of the supplied and existing shape. Only available if php/mapscript is built with GEOS library.
shapeObj topologySimplifyPreservingSimplify(double tolerance): Given a tolerance, returns a simplified shape object or NULL on error. Only available if php/mapscript is built with GEOS library (>=3.0).
int touches(shapeobj shape): Returns true if the shape passed as argument touches the shape. Else return false. Only available if php/mapscript is built with GEOS library.
string toWkt(): Returns WKT representation of the shape’s geometry.
shapeobj union(shapeobj shape): Returns a shape object representing the union of the shape object with the one passed as parameter. Only available if php/mapscript is built with GEOS library
int within(shapeobj shape2): Returns true if the shape is entirely within the shape2 passed as argument. Else returns false. Only available if php/mapscript is built with GEOS library.

styleObj ¶

Constructor¶

Instances of styleObj are always embedded inside a classObj or labelObj.

new styleObj(classObj class [, styleObj style])
// or
new styleObj(labelObj label [, styleObj style])

or using the old constructor (do not support a labelObj at first argument)

styleObj ms_newStyleObj(classObj class [, styleObj style])

The second argument ‘style’ is optional. If given, the new style created will be a copy of the style passed as argument.

Members¶

Type	Name	Note
double	angle
int	antialias
colorObj	backgroundcolor
colorObj	color
double	maxsize
double	maxvalue
double	maxwidth
double	minsize
double	minvalue
double	minwidth
int	offsetx
int	offsety
int	opacity	only supported for the AGG driver
colorObj	outlinecolor
string	rangeitem
double	size
int	symbol
string	symbolname
double	width

Methods¶

void free()

Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.

string getBinding(const stylebinding)

Get the attribute binding for a specfiled style property. Returns NULL if there is no binding for this property.

$oStyle->setbinding(MS_STYLE_BINDING_COLOR, "FIELD_NAME_COLOR");
echo $oStyle->getbinding(MS_STYLE_BINDING_COLOR); // FIELD_NAME_COLOR

string getGeomTransform()

int removeBinding(const stylebinding)

Remove the attribute binding for a specfiled style property. Added in MapServer 5.0.

$oStyle->removebinding(MS_STYLE_BINDING_COLOR);

int set(string property_name, new_value)

Set object property to a new value.

int setBinding(const stylebinding, string value)

Set the attribute binding for a specfiled style property. Added in MapServer 5.0.

$oStyle->setbinding(MS_STYLE_BINDING_COLOR, "FIELD_NAME_COLOR");

This would bind the color parameter with the data (ie will extract the value of the color from the field called “FIELD_NAME_COLOR”

int setGeomTransform(string value)

int updateFromString(string snippet): Update a style from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

symbolObj ¶

Constructor¶

new symbolObj(mapObj map, string symbolname)

or using the old constructor

int ms_newSymbolObj(mapObj map, string symbolname)

Creates a new symbol with default values in the symbolist.

Note

Using the new constructor, the symbol is automatically returned. The old constructor returns the id of the new symbol.

If a symbol with the same name exists, it (or its id) will be returned. To get a symbol object using the old constructor, you need to use a method on the map object:

$nId = ms_newSymbolObj($map, "symbol-test");
$oSymbol = $map->getSymbolObjectById($nId);

Members¶

Type	Name	Note
int	antialias
string	character
int	filled
string	font
string	imagepath	read-only
int	inmapfile	If set to TRUE, the symbol will be saved inside the mapfile.
int	patternlength	read-only
int	position
string	name
int	numpoints	read-only
double	sizex
double	sizey
int	transparent
int	transparentcolor

Methods¶

void free()

Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.

array getPatternArray()

Returns an array containing the pattern. If there is no pattern, it returns an empty array.

array getPointsArray()

Returns an array containing the points of the symbol. Refer to setpoints to see how the array should be interpreted. If there are no points, it returns an empty array.

int set(string property_name, new_value)

Set object property to a new value.

int setImagePath(char filename)

Loads a pixmap symbol specified by the filename. The file should be of either Gif or Png format.

int setPattern(array int)

Set the pattern of the symbol (used for dash patterns). Returns MS_SUCCESS/MS_FAILURE.

int setPoints(array double)

Set the points of the symbol. Note that the values passed is an array containing the x and y values of the points. Returns MS_SUCCESS/MS_FAILURE. Example:

$array[0] = 1 # x value of the first point
$array[1] = 0 # y values of the first point
$array[2] = 1 # x value of the 2nd point
....

Example of usage¶

create a symbol to be used as a dash line

$nId = ms_newsymbolobj($gpoMap, "mydash");
$oSymbol = $gpoMap->getsymbolobjectbyid($nId);
$oSymbol->set("filled", MS_TRUE);
$oSymbol->set("sizex", 1);
$oSymbol->set("sizey", 1);
$oSymbol->set("inmapfile", MS_TRUE);

$aPoints[0] = 1;
$aPoints[1] = 1;
$oSymbol->setpoints($aPoints);

$aPattern[0] = 10;
$aPattern[1] = 5;
$aPattern[2] = 5;
$aPattern[3] = 10;
$oSymbol->setpattern($aPattern);

$style->set("symbolname", "mydash");

Create a TrueType symbol

$nId = ms_newSymbolObj($gpoMap, "ttfSymbol");
    $oSymbol = $gpoMap->getSymbolObjectById($nId);
    $oSymbol->set("type", MS_SYMBOL_TRUETYPE);
    $oSymbol->set("filled", true);
    $oSymbol->set("character", "&#68;");
$oSymbol->set("font", "ttfFontName");

webObj ¶

Constructor¶

Instances of webObj are always are always embedded inside the mapObj.

Members¶

Type	Name	Note
string	browseformat
string	empty	read-only
string	error	read-only
rectObj	extent	read-only
string	footer
string	header
string	imagepath
string	imageurl
string	legendformat
string	log
double	maxscaledenom
string	maxtemplate
hashTableObj	metadata
double	minscaledenom
string	mintemplate
string	queryformat
string	template
string	temppath

Methods¶

void free(): Free the object properties and break the internal references. Note that you have to unset the php variable to free totally the resources.
int set(string property_name, new_value): Set object property to a new value.
int updateFromString(string snippet): Update a web object from a string snippet. Returns MS_SUCCESS/MS_FAILURE.

Memory Management ¶

Normally, you should not have to worry about the memory management because php has a garbage collector and will free resources for you. If you write only small scripts that don’t do a lot of processing, it’s not worth to care about that. Everything will be freed at the end of the script.

However, it may be useful to free resources during the execution if the script executes many tasks. To do so, you’ll have to call the free() method of the mapscript objects and unset the php variables. The purpose of the free methods is to break the circular references between an object and its properties to allow the zend engine to free the resources.

Here’s an example of a script that doesn’t free things during the execution:

$map = new mapObj("mapfile.map");
$of = $map->outputformat;
echo $map->extent->minx." - ".$map->extent->miny." - ".$map->extent->maxx.
                                              " - ".$map->extent->maxy."\n";
echo "Outputformat name: $of->name\n";
unset($of);
unset($map); // Even if we unset the php variables, resources wont be freed
// Resources will be only freed at the end of the script

and the same script that frees resources as soon as it can

$map = new mapObj("mapfile.map");
$of = $map->outputformat;
echo $map->extent->minx." - ".$map->extent->miny." - ".$map->extent->maxx." - ".$map->extent->maxy."\n";
echo "Outputformat name: $of->name\n";
unset($of);
$map->free(); // break the circular references
// at this place, the outputformat ($of) and the rect object ($map->extent) resources are freed
unset($map);
// the map object is immediately freed after the unset (before the end of the script)

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