Built-in function: between

Hi! Since I'm using this function in each project I'm working on, how about making it a built-in function? function between ($text, $between, $and) {

    $start = strpos($text, $between)+strlen($between);
    if ($start === false) return "";
    $end = strpos($text, $and, $start);
    if ($end === false) return "";
    return substr($text, $start, $end-$start);

} Basicly this function returns a substring given in a text $text between two strings, $between and $and, occuring in $text. Here are some examples: echo between("PHP is awesome!", "PHP ", " awesome!");

is echo between("PHP is awesome!", "P", "o");

HP is awes echo between("PHP is awesome!", "PHP ", "great!");

As mentioned above, this function is very useful, for example when parsing formated input data like html files, and everyone I told about it adopted it and is very thankful. Thanks, Alex