remove word from array

[notset]

Hello,

$user = array ('user_id' => 1, 'user_username' => 'test');

I want, to replace $user['user_id'] with $user['id'] and etc. - just remove 'user_' prefix.

Could you help me? Thank's.

[bogu]

Something like this:

$user = array ('user_id' => 1, 'user_username' => 'test');
$tmp_arr = array();
foreach ($user as $key=>$value) {
	if ( (strstr($key,'user_')) === false ) $new_key = str_replace('user_','',$key);
	if (!empty($new_key)) $tmp_arr[$new_key] = $value;
	else $tmp_arr[$key] = $value;
	unset($new_key);
}