note 13222 modified in function.func-get-args by danbrown
| From: | danbrown@php.net | Date: | Sat, 19 Jul 2008 21:48:58 +0000 |
| Subject: | note 13222 modified in function.func-get-args by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-141768@lists.php.net to get a copy of this message | ||
You can pass a variable number of arguments to a function whilst keeping references intact by using
an array. The disadvantage of course, is that the called function needs to be aware that it's
arguments are in an array.
<?php
// Prints "hello mutated world"
function mutator($args=null) {
$n=count($args);
while($i<$n) $args[$i++] = "mutated";
}
$a = "hello";
$b = "strange";
$c = "world";
mutator(array($a, &$b, $c));
echo "$a $b $c";
?>
--was--
You can pass a variable number of arguments to a function whilst keeping references intact by using
an array. The disadvantage of course, is that the called function needs to be aware that it's
arguments are in an array.
<?
// Prints "hello mutated world"
function mutator($args=null) {
$n=count($args);
while($i<$n) $args[$i++] = "mutated";
}
$a = "hello";
$b = "strange";
$c = "world";
mutator(array($a, &$b, $c));
echo "$a $b $c";
?>
http://php.net/manual/en/function.func-get-args.php