The xml_set_unparsed_entity_decl_handler() function specifies the function that is called when the parser finds an unparsable entity in the XML document.
If successful, the function returns TRUE. If it fails, returns FALSE.
xml_set_unparsed_entity_decl_handler(parser,handler)
| parameter | describe |
|---|---|
| parser | Required. Specifies the XML parser to use. |
| handler | Specifies the function to be called when the parser finds an entity that cannot be parsed. |
The function specified by the "handler" parameter must have six parameters:
| parameter | describe |
|---|---|
| parser | Required. Specifies a variable containing the XML parser that calls the processor. |
| name | Required. Specifies a variable containing the entity name. |
| base | Required. Specifies a variable containing the basis for resolving the entity's system identifier (system_id). Currently this parameter is usually set to NULL. |
| system_id | Required. Specifies a variable containing the entity's system identifier. |
| public_id | Required. Specifies a variable containing the entity's public identifier. |
| notation | Required. Specifies a variable containing a symbol that identifies the entity's data type. |
Note: The handler parameter can also be an array containing object references and method names.
<?php$parser=xml_parser_create();function char($parser,$data) { echo $data; }function unparsed_ent_handler($parser,$entname,$base,$sysID,$pubID,$notname) { print "$ entname<br />"; print "$sysID<br />"; print "$pubID<br />"; print "$notname<br />"; }xml_set_character_data_handler($parser,"char");xml_set_unparsed_entity_decl_handler($parser,"unparsed_ent_handler");$fp=fopen("test.xml","r");while ($data=fread($fp,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);?>