// Ajouter du contenu
$file = fopen(dirname(dirname(__FILE__)).'/index.htm', 'r');
$content = fread($file, filesize(dirname(dirname(__FILE__))) '/index.htm'));
$hello = '<link type="text/css" rel="stylesheet" href="/css/hover.css" />'
fclose($file);
$file = fopen(dirname(dirname(__FILE__)).'/index.htm', 'w');
echo fwrite($file, $hello);
fclose($file) ;

Maintenant, le code ci-dessus ajoute <link type="text/css" rel="stylesheet" href="/css/hover.css" /> head> ; Ajouter <link type="text/css" rel="stylesheet" href="/css/hover.css" /> Merci