Php zip function

This script will recursively create a zip file.
The only thing you have to do is give the function a source and destination like so:
$zip = createZip($source, $destination);


==== SCRIPT HERE =====
<?php
/*
 * NOTE: Comments between stars don't have anything to do with what the code actually does.
 *       They are merely for funzies!
 * */

    /* Start the dragon hunt. */
    function createZip($source, $destination){
        /* Did we find a dragon?? yes!? */
        //cheack wether the zip extension is installed and the source exists.
        if (!extension_loaded('zip') || !file_exists($source)) {
            return false; /* No dragons here, move on lads! */
        }
        /* Quickly grab a container to put the dragon in! */
        //Create a new zip archive
        $zip = new ZipArchive();

        /* Does the container have a lock??? Why didn't you remove the damn lock!? */
        //check wether the zip is open and created.
        if (!$zip->open($destination, ZIPARCHIVE::CREATE)) {
            return false;
        }

        /* Did we find mum, or a baby dragon? */
        //check if source is a dir, not a file
        if (is_dir($source) === true){
            $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);
            foreach ($files as $file){/* Ayy, matey it's a mommy dragon quick search it's pouches! */
                $file = str_replace('\\', '/', $file);
                /* Remember! We don't need the eggs! */
                // Ignore unix hidden folders
                if( in_array(substr($file, strrpos($file, '/')+1), array('.', '..')) )
                    continue;
                    /* This baby dragon has babies??? or not?? */
                //check wether the "file" is actually a folder, if it is add an empty dir to the zip.
                if (is_dir($file) === true){/* Just bag the baby with the babies anyways */
                    $zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));
                }
                /* Oh, good it's just a baby dragon... */
                //if it turns out to be a file, just add it :D
                else if (is_file($file) === true){
                    $zip->addFromString(str_replace($source . '/', '', $file), file_get_contents($file));
                }
            }
        }
        /* Doesn't matter, bag the baby anyways */
        else if (is_file($source) === true){// if it IS a file, zip it.
            $zip->addFromString(basename($source), file_get_contents($source));
        }
        /* Let's bring the container to the king! */
        //close the zip and return it
        return $zip->close();
    }
?>