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(PHP 5 >= 5.1.0)
ReflectionFunction::invokeArgs — Invokes function args
Invokes args.
Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Argumente zur Verfügung.
The passed arguments to the function as an array, much like call_user_func_array() works.
Returns the result of the invoked function
Beispiel #1 ReflectionFunction::invokeArgs() example
<?php
function title($title, $name)
{
return sprintf("%s. %s\r\n", $title, $name);
}
$function = new ReflectionFunction('title');
echo $function->invokeArgs(array('Dr', 'Phil'));
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
Dr. Phil
Beispiel #2 ReflectionFunction::invokeArgs() with references example
<?php
function get_false_conditions(array $conditions, array &$false_conditions)
{
foreach ($conditions as $condition) {
if (!$condition) {
$false_conditions[] = $condition;
}
}
}
$function_ref = new ReflectionFunction('get_false_conditions');
$conditions = array(true, false, -1, 0, 1);
$false_conditions = array();
$function_ref->invokeArgs(array($conditions, &$false_conditions));
var_dump($false_conditions);
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
array(2) {
[0]=>
bool(false)
[1]=>
int(0)
}
Hinweis:
If the function has arguments that need to be references, then they must be references in the passed argument list.
I encountered a weird problem with ReflectionFunction, described in ticket 44139 of PHP Bugs.
If for some reason you need to call with invoke, or invokeArgs, a function like array_unshift (that accepts internally the array by reference) you could use this code to avoid the generated warning or fatal error.
<?php
function unshift(){
$ref = new ReflectionFunction('array_unshift');
$arguments = func_get_args();
return $ref->invokeArgs(array_merge(array(&$this->arr), $arguments));
}
?>
I don't know about performances (you can create an array manually too, starting from array(&$this->something) and adding arguments). However, it seems to work correctly without problems, at least until the send by reference will be usable with one single value ...
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