PHP xml_set_unparsed_entity_decl_handler() Function
In this chapter you will learn:
- Description for PHP xml_set_unparsed_entity_decl_handler() Function
- Syntax for PHP xml_set_unparsed_entity_decl_handler() Function
- Parameter for PHP xml_set_unparsed_entity_decl_handler() Function
- Return for PHP xml_set_unparsed_entity_decl_handler() Function
- Example - specifies a function to be called when the parser an unparsed entity in the XML document
Description
The xml_set_unparsed_entity_decl_handler() function specifies a function to be called when the parser an unparsed entity in the XML document.
Syntax
PHP xml_set_unparsed_entity_decl_handler() Function has the following syntax.
xml_set_unparsed_entity_decl_handler(parser,handler)Parameter
| Parameter | is Required | Description |
|---|---|---|
| parser | Required. | XML parser to use |
| handler | Required. | A function to be when the parser finds a notation declaration |
The Function specified by the "handler" parameter must have six parameters:
| Parameter | Is Required | Description |
|---|---|---|
| parser | Required. | A variable containing the XML parser calling the handler |
| name | Required. | A variable containing the name of the entity |
| base | Required. | A variable containing the base for resolving the system identifier (system_id) of the entity. Currently, this is always NULL |
| system_id | Required. | A variable containing the system identifier for the entity |
| public_id | Required. | A variable containing the public identifier for the entity |
| notation | Required. | A variable containing the notation identifying the data type of the entity |
Return
This function returns TRUE on success, or FALSE on failure.
Example
XML File
<?xml version="1.0" encoding="ISO-8859-1"?>
<Book>// ja v a2s . co m
<name>PHP</name>
<name>Java</name>
</Book>
PHP code
<?php /* ja v a2 s .c o m*/
$parser=xml_parser_create();
function char($parser,$data){
echo $data;
}
function unparsed_ent_handler($parser,$entname,$base,$sysID,$pubID,$notname){
print "$entname ";
}
xml_set_character_data_handler($parser,"char");
xml_set_unparsed_entity_decl_handler($parser,"unparsed_ent_handler");
$fp=fopen("test.xml","r");
while ($data=fread($fp,1024)){
xml_parse($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);
?>
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