(PHP 3 = 3.0.6, PHP 4 )
Sets the external entity reference handler function for
the XML parser parser. handler is a string containing
the name of a function that must exist when
xml_parse() is called for
parser.
The function named by
handler must accept five parameters, and should
return an integer value. If the value returned from the
handler is FALSE (which it
will be if no value is returned), the XML parser will stop
parsing and xml_get_error_code() will return
XML_ERROR_EXTERNAL_ENTITY_HANDLING. handler
( resource parser, string open_entity_names, string base,
string system_id, string public_id)
The first parameter,
parser, is a reference to the XML parser
calling the handler.
The second parameter,
open_entity_names, is a space-separated list
of the names of the entities that are open for the
parse of this entity (including the name of the
referenced entity).
This is the base for resolving the system
identifier (system_id) of the external
entity. Currently this parameter will always be set to
an empty string.
The fourth parameter,
system_id, is the system identifier as
specified in the entity declaration.
The fifth parameter,
public_id, is the public identifier as
specified in the entity declaration, or an empty string
if none was specified; the whitespace in the public
identifier will have been normalized as required by the
XML spec.
If a handler function is set to an empty string, or FALSE, the handler in question
is disabled.
TRUE is returned if the
handler is set up, FALSE if
parser is not a parser.
注: 除了函數名稱, 也提供一個包含物件參考的陣列和一個方法名稱。