<?php $password = "monmotdepasse"; if (!preg_match("/^[a-zA-Z0-9]{8,16}$/", $password)) echo "Mot de passe incorrect!"; else print "Mot de passe validé" ?>
<?php $password = "monmotdepasse"; if (!preg_match("/^[a-zA-Z0-9]{8,16}$/", $password)) echo "Mot de passe incorrect!"; else print "Mot de passe validé" ?>