CPW Uploads 2014 v1.1 | Multiple PHP File Upload

<?php
/**
 * Multiple PHP File Upload v1.1, 05 Feb. 2014
 * Super-easy config through form hidden fields!
 *
 * @author      George Yanev (http://github.com/tunnckoCore)
 *
 * @license     MIT License (http://opensource.org/licenses/MIT)
 * @copyright   2014, WAF Development
 */
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    $cntFILES = count($_FILES['cpw_whistle']['name']);
    $cntPOST = count($_POST);

    if ($cntFILES > 0 && $cntPOST > 1) {
        //echo "<pre>" . print_r($_POST, true) . "</pre>";
        //echo "<pre>" . print_r($_FILES, true) . "</pre>";

        for ($cpw = 0; $cpw < $cntFILES; $cpw++) {

            //leka normalizaciq
            $_basename = strtolower($_FILES['cpw_whistle']['name'][$cpw]);
            $_tempname = $_FILES['cpw_whistle']['tmp_name'][$cpw];
            $_errorNum = (int) $_FILES['cpw_whistle']['error'][$cpw];
            $_filesize = (int) $_FILES['cpw_whistle']['size'][$cpw];
            $_fileMime = $_FILES['cpw_whistle']['type'][$cpw];

            // podrejdame sobstven po-udoben masiv
            $_APIF['cpw_whistle'][$cpw]['tmp_name'] = $_tempname;
            $_APIF['cpw_whistle'][$cpw]['error'] = $_errorNum;
            $_APIF['cpw_whistle'][$cpw]['name'] = $_basename;
            $_APIF['cpw_whistle'][$cpw]['size'] = $_filesize;
            $_APIF['cpw_whistle'][$cpw]['type'] = $_fileMime;

            //ako ima nqkakfa PHP/serverna greshka
            //izobshto nqma smisal da produljavame
            if ($_APIF['cpw_whistle'][$cpw]['error'] == 0) {

                list($endFilename, $imageExtension) = explode(".", $_APIF['cpw_whistle'][$cpw]['name']);

                //vzimame pozvolenite razshireniq
                $allowedExtensions = explode(",", $_POST['cpw_allow_extensions']);


                // ako E napisano novo ime polzva nego
                // ako NE polzva imeto na faila koito se ka4va
                if (!empty($_POST['cpw_new_filename'])) {
                    $endFilename = strip_tags(trim($_POST['cpw_new_filename']));
                }
                //postroqvame cqloto ime na ka4vashtiqt se fail
                $finalImageName = $endFilename . '.' . $imageExtension;


                //proverqvame dali failat e s nqkoe ot pozvolenite razshireniq
                //ako ne e, zapisvame string v masiva errors
                if (!in_array($imageExtension, $allowedExtensions)) {
                    $response['errors'][$cpw]['filename'] = $finalImageName;
                    $response['errors'][$cpw]['message'] = 'Това (' . $imageExtension . ') файлово разширение не е позволено.';
                    $response['errors'][$cpw]['key'] = 'not_allowed_extension';
                    $response['errors'][$cpw]['code'] = 40001;
                }

                //proverqvame dali goleminata na faila e po-golqma ot
                //poso4eniq maximum, ako e zapisvame greshka
                if ($_APIF['cpw_whistle'][$cpw]['size'] > ($_POST['cpw_max_singlefile_size'] * 1024 * 1024)) {
                    $response['errors'][$cpw]['filename'] = $finalImageName;
                    $response['errors'][$cpw]['message'] = 'Размера на ' . $finalImageName . ' e по-голям от определеният максимум.';
                    $response['errors'][$cpw]['key'] = 'max_singlefile_size';
                    $response['errors'][$cpw]['code'] = 40002;
                }
                //ako nqma greshki dotuk produljavame sus suzdavaneto
                //na direktoriqta poso4ena za upload i
                //opravqneto na neinite prava
                if (!isset($response['errors'][$cpw])) {

                    //suzdavame putq do upload papkata
                    $uploadDirectory = trim($_POST['cpw_uploadpath'], '/');
                    $uploadPath = __DIR__ . DIRECTORY_SEPARATOR . $uploadDirectory;

                    $finalPath = realpath($uploadPath);

                    //proverqvame dali direktoriqta sushtestvuva
                    //ako ne sushtestvuva, suzdavame q
                    if (!$finalPath) {
                        mkdir($uploadPath);
                        chmod($uploadPath, 0777);
                        $finalPath = $uploadPath;
                    }


                    if (move_uploaded_file($_APIF['cpw_whistle'][$cpw]['tmp_name'], $finalPath . DIRECTORY_SEPARATOR . $finalImageName)) {
                        $response['success'][$cpw]['filename'] = $finalImageName;
                        $response['success'][$cpw]['message'] = $uploadDirectory . '/' . $finalImageName;
                        $response['success'][$cpw]['key'] = 'success_upload';
                        $response['success'][$cpw]['code'] = 44444;
                    } else {
                        $response['errors'][$cpw]['filename'] = $finalImageName;
                        $response['errors'][$cpw]['message'] = 'Грешка при move_uploaded_file().';
                        $response['errors'][$cpw]['key'] = 'error_uploading_file';
                        $response['errors'][$cpw]['code'] = 40003;
                    }
                }
            } else {
                $response['errors'][$cpw]['filename'] = $finalImageName;
                $response['errors'][$cpw]['message'] = 'Възникнала е някаква сървърна грешка.'
                        . 'Моля проверете стойностите на upload_max_filesize, '
                        . 'post_max_size или max_file_uploads в използваният php.ini';
                $response['errors'][$cpw]['key'] = 'general_server_error';
                $response['errors'][$cpw]['code'] = 50000;
            }
        }
    }
}
echo '<ul>';
if (isset($response['errors'])) {
    $response['errors'] = array_values($response['errors']);

    for ($i = 0; $i < count($response['errors']); $i++) {
        $data = '<li><b>Filename:</b> ' . $response['errors'][$i]['filename'] . ' | ';
        $data .= '<b>Keycode:</b> ' . $response['errors'][$i]['key'] . ' | ';
        $data .= '<b>Message:</b> ' . $response['errors'][$i]['message'] . '</li>';
        echo '<div style="color: red;">'.$data.'</div>';
    }
}
if (isset($response['success'])) {
    $response['success'] = array_values($response['success']);

    for ($i = 0; $i < count($response['success']); $i++) {
        $data = '<li><b>Filename:</b> '.$response['success'][$i]['filename'].' | ';
        $data .= '<b>Path2image:</b> '.$response['success'][$i]['message'].'</li>';
        echo '<div style="color: green;">'.$data.'</div>';
    }
}
echo '</ul>';


/**
 * Za pove4e informaciq ot otgovora:
 * echo '<pre>' . print_r($response, true) . '</pre>';
 */

?>
<form action="" method="post" enctype="multipart/form-data">
    <input type="text" name="cpw_new_filename" placeholder="New filename">
    <input type="hidden" name="cpw_uploadpath" value="simpleupload-files">
    <input type="hidden" name="cpw_max_singlefile_size" value="1">
    <input type="hidden" name="cpw_allow_extensions" value="png,jpg,jpeg,gif">
    <input type="file" name="cpw_whistle[]" required multiple accept="image/*">
    <button type="submit">Прикачи</button>
</form>