PHP xml_set_default_handler() Function

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Definition and Usage

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.

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

Syntax

xml_set_default_handler(parser,handler)

Parameter Description
parser Required. Specifies XML parser to use
handler Required. Specifies a function to be used as an event handler

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

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

Tips and Notes

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

Example

XML File

<?xml version="1.0" encoding="UTF-8"?>
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>

PHP Code

<?php
$parser=xml_parser_create();

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

xml_set_default_handler($parser,"default");
$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);
?>

The output of the code above will be:

Tove Jani Reminder Don't forget me this weekend!

If you select "View source" in the browser window, you will see the following HTML:

<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>

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