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<?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);
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.9
array(0) { }

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173.79 ms | 403 KiB | 190 Q