How to remove URL Anchor (Fragment) using PHP?

The best option is using the parse_url() function:

function removeURLFragment($pstr_urlAddress = '') {
    $larr_urlAddress = parse_url ( $pstr_urlAddress );
    return $larr_urlAddress['scheme'].'://'.(isset($larr_urlAddress['user']) ? $larr_urlAddress['user'].':'.''.$larr_urlAddress['pass'].'@' : '').$larr_urlAddress['host'].(isset($larr_urlAddress['port']) ? ':'.$larr_urlAddress['port'] : '').$larr_urlAddress['path'].(isset($larr_urlAddress['query']) ? '?'.$larr_urlAddress['query'] : '');
}

I think this is way better, since the knowledge of the structure of the URL is encapsulated. Chances are pretty large than using regexes or string manipulation, one will forget some scenario’s whereas dedicated methods are more reliable.