- 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) { }
<?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);