- strripos: documentation ( source)
<?php
$contenu_avant = " \n // function truc( ";
if ((strripos($contenu_avant, "/*") === TRUE && strripos("/*") > strripos("*/")) ||
(strripos($contenu_avant, "//") === TRUE && strripos("//") > strripos(chr(10))))
echo "en commentaire !";
else
echo "ok";