delete-comments.php

<?php

function deleteCommentsFromFolder($dir)
{
    $di = new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::SKIP_DOTS);
    $it = new RecursiveIteratorIterator($di);
    $fileArr = [];

    foreach ($it as $file) {
        if (pathinfo($file, PATHINFO_EXTENSION) == 'php') {
            ob_start();
            echo $file;
            $file = ob_get_clean();
            $fileArr[] = $file;
        }
    }
    $arr = [T_COMMENT,T_DOC_COMMENT];
    $count = count($fileArr);
    for ($i=1;$i < $count;$i++) {
        $fileStr = file_get_contents($fileArr[$i]);
        foreach (token_get_all($fileStr) as $token) {
            if (in_array($token[0], $arr)) {
                $fileStr = str_replace($token[1], '', $fileStr);
            }
        }
        file_put_contents($fileArr[$i], $fileStr);
    }
}

return deleteCommentsFromFolder(__DIR__);