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public php v1 · immutable<?session_start();require ("config.php"); if(!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9- ]+)*(\.[a-z]{2,3})$", $_POST['email'])) { echo "The e-mail was not valid"; } else { echo "The e-mail was valid"; } ?>