php zip

function mkzip($znm, $src  = array()){
    $dnm = dirname(getcwd());
    $zfd = new ZipArchive();
    $zfd->open($znm, ZipArchive::CREATE | ZipArchive::OVERWRITE);
    foreach ($src as $f1){
        if(is_dir($f1))
            addzipD($zfd, $dnm, ($f1));
            else
                addzipF($zfd, $dnm, ($f1));
    }
    $zfd->close();
}
function addzipF(&$zfd,&$dnm, &$f1){
    $realfnm = realpath($f1);
    $relativePath = substr($realfnm, strlen($dnm) + 1);
    $zfd->addFile($realfnm, $relativePath);
}
function addzipD(&$zfd,&$dnm, &$f1){
    if(!is_dir($f1)) return;
    $files = new RecursiveIteratorIterator( new RecursiveDirectoryIterator($f1), RecursiveIteratorIterator::LEAVES_ONLY );
    foreach ($files as $name => $f1)
    {
        if ($f1->isDir()) continue; // Skip directories (they would be added automatically)
        addzipF($zfd, $dnm,$f1);
    }
}