PHP removing a character in a string

Question

My php is weak and I\'m trying to change this string:

http://www.example.com/backend.php?/c=crud&m=index&t=care
                                   ^
         


        

Answer 1

$splitPos = strpos($url, "?/");
if ($splitPos !== false) {
    $url = substr($url, 0, $splitPos) . "?" . substr($url, $splitPos + 2);
}