(PHP 4, PHP 5, PHP 7)
xml_set_external_entity_ref_handler — Set up external entity reference handler
Sets the external entity reference handler function for the XML parser
parser
.
parser
A reference to the XML parser to set up external entity reference handler function.
handler
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
.
$parser
, string $open_entity_names
, string $base
, string $system_id
, string $public_id
)parser
open_entity_names
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).
base
system_id
) of the external entity.Currently
this parameter will always be set to an empty string.
system_id
system_id
, is the
system identifier as specified in the entity declaration.
public_id
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.
Hinweis: Anstelle eines Funktionsnamens kann auch ein Array mit einer Objekt-Referenz und dem Namen einer Methode angegeben werden.
Gibt bei Erfolg TRUE
zurück. Im Fehlerfall wird FALSE
zurückgegeben.