PHP Tutorial - PHP xml_set_default_handler() Function

The xml_set_default_handler() function sets the default data handler for the XML parser.

This function specifies what function to be called whenever the parser finds data in the XML file.

Syntax

PHP xml_set_default_handler() Function has the following syntax.

xml_set_default_handler(parser,handler)

Parameter

Parameter	Is Required	Description
parser	Required.	XML parser to use
handler	Required.	A function to be used as an event handler

The Function specified by the "handler" parameter must have two parameters:

Parameter	is Required	Description
parser	Required.	A variable containing the XML parser calling the handler
data	Required.	A variable containing the data from the XML file as a string

The data_handler parameter can be an array containing an object reference and a method name.

Return

This function returns TRUE on success, or FALSE on failure.

Example

XML File

<?xml version="1.0" encoding="ISO-8859-1"?>
<books>
  <name>PHP</name>
  <name>Java</name>
</books>

PHP Code


<?php/*from w  w  w  .jav a  2s. c  o m*/
$parser=xml_parser_create();

function defaultH($parser,$data){
  echo $data;
}

xml_set_default_handler($parser,'defaultH');
$fp=fopen("test.xml","r");

while ($data=fread($fp,4096)){
  xml_parse($parser,$data,feof($fp)) or 
  die (sprintf("XML Error: %s at line %d", 
  xml_error_string(xml_get_error_code($parser)),
  xml_get_current_line_number($parser)));
}

xml_parser_free($parser);
?>