Simple utility which creates a zip archive with contents of the folder it is placed in. This script comes in handy when you don't have SSH access to your (shared) webserver. Upload the script to the webserver, open url `http://example.com/compress.php`. Script creates archive `http://example.com/__name-of-folder.zip`.

Simple PHP script to compress folder

<?php
/**
 * Compress a folder to a zip archive
 *
 * Simple utility which creates a zip archive with contents of the folder it is placed in.
 * This script comes in handy when you don't have SSH access to your (shared) webserver.
 * Upload the script to the webserver, open url `http://example.com/compress.php`.
 * Script creates archive `http://example.com/__name-of-folder.zip`.
 *
 * @copyright   Copyright (c) 2013 Tomas Vitek
 * @author      Tomas Vitek ~ http://tomasvitek.com
 * @link        Compress function inspired by http://stackoverflow.com/a/1334949
 * @version     0.1
 */

function compress($source, $destination)
{
    if (!file_exists($source)) {
        return false;
    }

    $zip = new ZipArchive();
    if (!$zip->open(__DIR__ . '/' . $destination, ZIPARCHIVE::CREATE)) {
        return false;
    }

    $source = str_replace('\\', '/', realpath($source));

    if (is_dir($source) === true) {
        $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);

        foreach ($files as $file) {
            $file = str_replace('\\', '/', $file);

            if( in_array(substr($file, strrpos($file, '/')+1), array('.', '..', $destination)) )
                continue;

            $file = realpath($file);

            if (is_dir($file) === true) {
                $zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));
            }
            else if (is_file($file) === true) {
                $zip->addFromString(str_replace($source . '/', '', $file), file_get_contents($file));
            }
        }
    }
    else if (is_file($source) === true) {
        $zip->addFromString(basename($source), file_get_contents($source));
    }

    return $zip->close();
}

if (compress(__DIR__, '__' . basename(__DIR__) .'.zip') === TRUE) {
    echo '<h1>Done! 👍</h1>';
} else {
    echo '<h1>Failed! 👎</h1><p>Check if the folder exists or if PHP can write to the folder.</p>';
}