Question

I have a regex as such

eregi_replace("s=.*&","",$section->urlToThreads);

What it does is replace everything with '' which starts with 's=' and ends with '&'

What I want to do is also if an ‘&’ is not found after the ‘s=’ till the end of the string, then replace everything from ‘s=’ till the end of the string with ”

E.g.

test.php?s=12232dsd23423&t=41 would become test.php?t=41

And

test.php?t=41&s=12232dsd23423 would become test.php?t=41

Answer 1

SOLUTION – WITHOUT REGEX

$str = $section->urlToThreads;
                        $url = '';
                        $url = $section->urlToThreads;
                        $pos = strpos( $str,'s=');
                        if ($pos)
                        {
                            $pos_ampersand =  strpos( $str,'&',$pos);

                            if ($pos_ampersand) //if ampersand is found after s=
                            {
                                $url = substr($str, 0, $pos) . substr($str, $pos_ampersand+1, strlen($str));
                            }
                            else // if no ampersand found after s=
                            {
                                $url = substr($str, 0, $pos-1);
                            }
                        }
                        $section->urlToThreads = $url;