PHP xml_set_external_entity_ref_handler() Function
Example
Create an XML parser, set character data handler, set external entity reference handler, and parse an XML document:
<?php
// Create an XML parser
$parser=xml_parser_create();
function char($parser,$data) {
echo $data;
}
function ext_ent_handler($parser,$ent,$base,$sysID,$pubID)
{
echo "$ent<br>";
echo "$sysID<br>";
echo "$pubID<br>";
}
// Set the
character data handler
xml_set_character_data_handler($parser,"char");
// Set the
external entity reference handler
xml_set_external_entity_ref_handler($parser, "ext_ent_handler");
$fp=fopen("note_entity.xml","r");
while ($data=fread($fp,4096)) {
// Parse XML data
xml_parse($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($parser);
fclose($fp);
?>
Definition and Usage
The xml_set_external_entity_ref_handler() function specifies a function to be called when the parser finds an external entity in the XML document.
Note: The handler parameter can also be an array containing an object reference and a method name.
Syntax
xml_set_external_entity_ref_handler(parser, handler)
Parameter Values
| Parameter | Description |
|---|---|
| parser | Required. Specifies the XML parser to use |
| handler | Required. Specifies a function to be used as an event handler. The function must
accept five parameters:
|
Technical Details
| Return Value: | TRUE on success. FALSE on failure |
|---|---|
| PHP Version: | 4.0+ |
❮ PHP XML Parser Reference
