Try following script ➡️➡
$errors = array();
if (strlen($pass) < 8 || strlen($pass) > 16) {
$errors[] = "Password should be min 8 characters and max 16 characters";
}
if (!preg_match("/\d/", $pass)) {
$errors[] = "Password should contain at least one digit";
}
if (!preg_match("/[A-Z]/", $pass)) {
$errors[] = "Password should contain at least one Capital Letter";
}
if (!preg_match("/[a-z]/", $pass)) {
$errors[] = "Password should contain at least one small Letter";
}
if (!preg_match("/\W/", $pass)) {
$errors[] = "Password should contain at least one special character";
}
if (preg_match("/\s/", $pass)) {
$errors[] = "Password should not contain any white space";
}
if ($errors) {
foreach ($errors as $error) {
echo "<div class='alert alert-danger'>".$error."</div>";
}
$error = 1;
} else {
$error = 0;
}