note 109938 modified in function.preg-replace-callback by danbrown

The easiest way to pass more than one parameters to the callback function is with the 'use' keyword. 

[This is better than using global, because it works even when we are already inside a function.]

In this example, the callback function is an anonymous function, which takes one argument, $match, supplied by preg_replace_callback(). The extra 
"use ($ten)" puts the $ten variable into scope for the function.

<?php
$string = "Some numbers: one: 1; two: 2; three: 3 end";
$ten = 10;
$newstring = preg_replace_callback(
	'/(\\d+)/',
	function($match) use ($ten) { return (($match[0] + $ten)); },
	$string
	);
echo $newstring;
#prints "Some numbers: one: 11; two: 12; three: 13 end";
?> --was-- The easiest way to pass more than one parameters to the callback function is with the 'use' keyword. [This is better than using global, because it works even when we are already inside a function.] In this example, the callback function is an anonymous function, which takes one argument, $match, supplied by preg_replace_callback(). The extra "use ($ten)" puts the $ten variable into scope for the function. $string = "Some numbers: one: 1; two: 2; three: 3 end"; $ten = 10; $newstring = preg_replace_callback( '/(\d+)/', function($match) use ($ten) { return (($match[0] + $ten)); }, $string ); echo $newstring; #prints "Some numbers: one: 11; two: 12; three: 13 end"; http://php.net/manual/en/function.preg-replace-callback.php