- var_dump: documentation ( source)
- strstr: documentation ( source)
<?php
$email = 'none';
$user = strstr($email, '@', true); // As of PHP 5.3.0
var_dump($user); // prints name
echo PHP_EOL;
$email = 'MAIL@ME!';
$user = strstr($email, '@', true); // As of PHP 5.3.0
var_dump($user); // prints name