How to get a substring between two strings in PHP?

Answer 1

With some error catching. Specifically, most of the functions presented require $end to exist, when in fact in my case I needed it to be optional. Use this is $end is optional, and evaluate for FALSE if $start doesn't exist at all:

function get_string_between( $string, $start, $end ){
    $string = " " . $string;
    $start_ini = strpos( $string, $start );
    $end = strpos( $string, $end, $start+1 );
    if ($start && $end) {
        return substr( $string, $start_ini + strlen($start), strlen( $string )-( $start_ini + $end ) );
    } elseif ( $start && !$end ) {
        return substr( $string, $start_ini + strlen($start) );
    } else {
        return FALSE;
    }

}