PHP to copy a string to the mac os x paste board

php_copy_to_paste_board.php

<?php
function copy2clipboard($string){
    $descriptorspec = array(
        0 => array("pipe", "r"),  // stdin is a pipe that the child will read from
        1 => array("pipe", "w"),  // stdout is a pipe that the child will write to
        2 => array("file", "a.txt", "a") // stderr is a file to write to
    );
    $process = proc_open('pbcopy', $descriptorspec, $pipes);
    if (is_resource($process)) {
        fwrite($pipes[0], $string);
        fclose($pipes[0]);
        fclose($pipes[1]);

        $return_value = proc_close($process);
        return $return_value;
    }
}
copy2clipboard('The string to copy to the paste board');