Hello all,

I am trying to ensure that a given username consists of alpha-numeric characters only. Here's the code:
PHP Code:
<?php
$username 
"madmax's";
if (
preg_match('/[1-9|a-z|A-Z]{6,14}/'$username)) {
    echo 
'Preg.. MATCH! $username is: ' $username '<br />';
} else {
    echo 
'No preg_match. Username may consist of alpha-numeric characters only';
}
?>
And here's the output to the browser:
---
Preg.. MATCH! $username is: madmax's
---

What's wrong with my code? The apostrophe in madmax's should have meant the pregmatch failed..