PHP Class XML_Parser

This is an XML parser based on PHP's "xml" extension, based on the bundled expat library. Notes: - It requires PHP 4.0.4pl1 or greater - From revision 1.17, the function names used by the 'func' mode are in the format "xmltag_$elem", for example: use "xmltag_name" to handle the tags of your xml file.

Author: Stig Bakken ([email protected])

Author: Tomas V.V.Cox ([email protected])

Author: Stephan Schmidt ([email protected])

Inheritance: extends PEAR

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Public Properties

Property	Type	Description
$_handlerObj	object	handler object
$_validEncodings	array	valid encodings
$folding	boolean	If set to true, all tag and attribute names will be converted to UPPER CASE.
$fp	resource	File handle if parsing from a file
$handler	array	Mapping from expat handler function to class method.
$mode	string	Mode of operation, one of "event" or "func"
$parser	resource	XML parser handle
$srcenc	string	source encoding
$tgtenc	string	target encoding

Public Methods

Method	Description
XML_Parser ( string $srcenc = null, string $mode = 'event', string $tgtenc = null )	Creates an XML parser.
__construct ( string $srcenc = null, string $mode = 'event', string $tgtenc = null )	PHP5 constructor
_create ( ) : boolean \| PEAR_Error	create the XML parser resource
_initHandlers ( ) : mixed	Init the element handlers
_parseString ( string $data, boolean $eof = false ) : boolean	XML_Parser::_parseString()
endHandler ( mixed $xp, mixed $elem ) : null	abstract method signature for End Handler
free ( ) : null	XML_Parser::free()
funcEndHandler ( mixed $xp, mixed $elem ) : void	derives and calls the End Handler function
funcStartHandler ( mixed $xp, mixed $elem, mixed $attribs ) : void	derives and calls the Start Handler function
parse ( ) : boolean \| PEAR_Error	Central parsing function.
parseString ( string $data, boolean $eof = false ) : boolean \| PEAR_Error	XML_Parser::parseString()
raiseError ( $message = NULL, integer $ecode = NULL, $mode = NULL, $options = NULL, $userinfo = NULL, $error_class = NULL, $skipmsg = false ) : XML_Parser_Error	XML_Parser::raiseError()
reset ( ) : boolean \| object	Reset the parser.
setHandlerObj ( &$obj ) : boolean	Sets the object, that will handle the XML events
setInput ( mixed $fp ) : mixed	Sets the file handle to use with parse().
setInputFile ( string $file ) : resource	Sets the input xml file to be parsed
setInputString ( string $data ) : null	XML_Parser::setInputString()
setMode ( string $mode ) : boolean \| object	Sets the mode of the parser.
startHandler ( mixed $xp, mixed $elem, &$attribs ) : null	abstract method signature for Start Handler

Method Details

XML_Parser() public method

This is needed for PHP4 compatibility, it will call the constructor, when a new instance is created.

public XML_Parser ( string $srcenc = null, string $mode = 'event', string $tgtenc = null )
$srcenc	string	source charset encoding, use NULL (default) to use whatever the document specifies
$mode	string	how this parser object should work, "event" for startelement/endelement-type events, "func" to have it call functions named after elements
$tgtenc	string	a valid target encoding

__construct() public method

PHP5 constructor

public __construct ( string $srcenc = null, string $mode = 'event', string $tgtenc = null )
$srcenc	string	source charset encoding, use NULL (default) to use whatever the document specifies
$mode	string	how this parser object should work, "event" for startelement/endelement-type events, "func" to have it call functions named after elements
$tgtenc	string	a valid target encoding

_create() public method

Has been moved from the constructor to avoid problems with object references. Furthermore it allows us returning an error if something fails. NOTE: uses '@' error suppresion in this method

_initHandlers() public method

Init the element handlers

public _initHandlers ( ) : mixed
return	mixed

_parseString() public method

XML_Parser::_parseString()

endHandler() public method

abstract method signature for End Handler

public endHandler ( mixed $xp, mixed $elem ) : null
$xp	mixed	??
$elem	mixed	??
return	null

free() public method

Free the internal resources associated with the parser

public free ( ) : null
return	null

funcEndHandler() public method

derives and calls the End Handler function

public funcEndHandler ( mixed $xp, mixed $elem ) : void
$xp	mixed	??
$elem	mixed	??
return	void

funcStartHandler() public method

derives and calls the Start Handler function

public funcStartHandler ( mixed $xp, mixed $elem, mixed $attribs ) : void
$xp	mixed	??
$elem	mixed	??
$attribs	mixed	??
return	void

parse() public method

Central parsing function.

public parse ( ) : boolean \| PEAR_Error
return	boolean \| PEAR_Error	returns true on success, or a PEAR_Error otherwise

parseString() public method

Parses a string.

raiseError() public method

Throws a XML_Parser_Error

public raiseError ( $message = NULL, integer $ecode = NULL, $mode = NULL, $options = NULL, $userinfo = NULL, $error_class = NULL, $skipmsg = false ) : XML_Parser_Error
$ecode	integer	the error message code
return	XML_Parser_Error	reference to the error object

reset() public method

This allows you to use one parser instance to parse multiple XML documents.

public reset ( ) : boolean \| object
return	boolean \| object	true on success, PEAR_Error otherwise

setHandlerObj() public method

This allows you to create a handler object independent of the parser object that you are using and easily switch the underlying parser. If no object will be set, XML_Parser assumes that you extend this class and handle the events in $this.

public setHandlerObj ( &$obj ) : boolean
return	boolean	will always return true

setInput() public method

You should use setInputFile() or setInputString() if you pass a string

setInputFile() public method

Sets the input xml file to be parsed

public setInputFile ( string $file ) : resource
$file	string	Filename (full path)
return	resource	fopen handle of the given file

setInputString() public method

Sets the xml input from a string

public setInputString ( string $data ) : null
$data	string	a string containing the XML document
return	null

setMode() public method

Possible modes are: - func - event You can set the mode using the second parameter in the constructor. This method is only needed, when switching to a new mode at a later point.

public setMode ( string $mode ) : boolean \| object
$mode	string	mode, either 'func' or 'event'
return	boolean \| object	true on success, PEAR_Error otherwise

startHandler() public method

abstract method signature for Start Handler

public startHandler ( mixed $xp, mixed $elem, &$attribs ) : null
$xp	mixed	??
$elem	mixed	??
return	null

Property Details

$_handlerObj public_oe property

handler object

public object $_handlerObj
return	object

$_validEncodings public_oe property

valid encodings

public array $_validEncodings
return	array

$folding public_oe property

If set to true, all tag and attribute names will be converted to UPPER CASE.

public bool $folding
return	boolean

$fp public_oe property

File handle if parsing from a file

public resource $fp
return	resource

$handler public_oe property

Mapping from expat handler function to class method.

public array $handler
return	array

$mode public_oe property

Mode of operation, one of "event" or "func"

public string $mode
return	string

$parser public_oe property

XML parser handle

$srcenc public_oe property

source encoding

public string $srcenc
return	string

$tgtenc public_oe property

target encoding

public string $tgtenc
return	string

public _create ( ) : boolean \| PEAR_Error
return	boolean \| PEAR_Error	true on success, PEAR_Error otherwise

public _parseString ( string $data, boolean $eof = false ) : boolean
$data	string	data
$eof	boolean	end-of-file flag
return	boolean

public parseString ( string $data, boolean $eof = false ) : boolean \| PEAR_Error
$data	string	XML data
$eof	boolean	If set and TRUE, data is the last piece of data sent in this parser
return	boolean \| PEAR_Error	true on success or a PEAR Error

public setInput ( mixed $fp ) : mixed
$fp	mixed	Can be either a resource returned from fopen(), a URL, a local filename or a string.
return	mixed