<?php $email = "a-b.b@c.d"; $err = []; if (!empty($email) && !preg_match('/^[\w-]+(?:\.[\w-]+)*@[\w-]+(?:\.[a-z0-9-]+)*\.[a-z]{1,12}$/i', $email)){ $err[] = "Invalid email<br>"; } var_dump($err);
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