how to check for special characters php [duplicate]

This question already has answers here: 开发者_如何学运维 Closed 12 years ago.

Possible Duplicate:

preg_match php special characters

Hi all, I want to check if these characters exist in a string by using preg_match:

^'£$%^&*()}{@'#~?><>,@|\-=-_+-¬'

Help please!

---

<?php

$string = 'foo';

if (preg_match('/[\'^£$%&*()}{@#~?><>,|=_+¬-]/', $string))
{
    // one or more of the 'special characters' found in $string
}

---

preg_match('/'.preg_quote('^\'£$%^&*()}{@#~?><,@|-=-_+-¬', '/').'/', $string);