note 90964 modified in language.oop5.reflection by danbrown
| From: | danbrown@php.net | Date: | Wed, 16 Sep 2009 16:08:17 +0000 |
| Subject: | note 90964 modified in language.oop5.reflection by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-160704@lists.php.net to get a copy of this message | ||
If you want to use method closures and don't have PHP 5.3, perhaps you find useful the
following function
<?php
function get_method_closure($object,$method_name){
if(method_exists(get_class($object),$method_name)){
$func = create_function( '',
'
$args = func_get_args();
static $object = NULL;
/*
* Check if this function is being called to set the static $object, which
* containts scope information to invoke the method
*/
if(is_null($object) && count($args) &&
get_class($args[0])=="'.get_class($object).'"){
$object = $args[0];
return;
}
if(!is_null($object)){
return call_user_func_array(array($object,"'.$method_name.'"),$args);
}else{
return FALSE;
}'
);
//Initialize static $object
$func($object);
//Return closure
return $func;
}else{
return false;
}
}
?>
Here is how you would use it:
<?php
class foo{
public function bar($foo){
return strtolower($foo);
}
}
$foo = new foo();
$f = get_method_closure($foo,'bar');
echo $f("BAR");//Prints 'bar'
?>
--was--
If you want to use method closures and don't have PHP 5.3, perhaps you find useful the
following function
<?php
function get_method_closure($object,$method_name){
if(method_exists(get_class($object),$method_name)){
$func = create_function( '',
'
$args = func_get_args();
static $object = NULL;
/*
* Check if this function is being called to set the static $object, which
* containts scope information to invoke the method
*/
if(is_null($object) && count($args) &&
get_class($args[0])=="'.get_class($object).'"){
$object = $args[0];
return;
}
if(!is_null($object)){
return call_user_func_array(array($object,"'.$method_name.'"),$args);
}else{
return FALSE;
}'
);
//Initialize static $object
$func($object);
//Return closure
return $func;
}else{
return false;
}
}
?>
Here is how you would use it:
<?php
class foo{
public function bar($foo){
return strtolower($foo);
}
}
$foo = new foo();
$f = get_method_closure($foo,'bar');
echo $f("BAR");//Prints 'bar'
?>
http://php.net/manual/en/language.oop5.reflection.php