Magento2 with love: 2015

Dec 18, 2015

Back link URL by Javascript

/**
 * Created by kongltn on 12/25/2015.
 */

$(document).ready(function () {
    $("#backButtonInheaderBar").click(function () {
        if (sessionStorage.backURL !== undefined) {
            sessionStorage.backIsClick = 1;
            var curArray = JSON.parse(sessionStorage.backURL);
            if (curArray.length > 1) curArray.pop();
            sessionStorage.backURL = JSON.stringify(curArray);
            window.location.replace(curArray[curArray.length - 1]);
        }
    });

    if (!sessionStorage.backURL || sessionStorage.backURL === undefined) {
        sessionStorage.backURL = JSON.stringify([window.location.origin]);
    }

    var curUrlHref = window.location.href;
    if (sessionStorage.backIsClick && sessionStorage.backIsClick === "1") {
        sessionStorage.backIsClick = 0;
    } else {
        var urlArray = JSON.parse(sessionStorage.backURL);
        if (curUrlHref != urlArray[urlArray.length - 1]) {
            urlArray.push(curUrlHref);
        }
        sessionStorage.backURL = JSON.stringify(urlArray);
    }

    //console.log(sessionStorage.backURL);
    //console.log(sessionStorage.backIsClick);
});

Dec 16, 2015

Action download file in PHP

/**
 * Action Download file
 * @return undefined
 */
public function actionDownload()
{
    $file = Yii::app()->request->getParam('file');
    $modelArchives = Archives::model()->find('path=:path', array(':path' => $file));
    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Content-type:application/octet-stream");
    header('Content-Disposition: attachment; filename="' . $modelArchives->fileName . '"');
    $contentArchive = Yii::getPathOfAlias('webroot') . Yii::app()->params["archiveFolderPath"] . '/' . $file;
    echo file_get_contents($contentArchive);
    exit;
}

Dec 9, 2015

CSS trick: Sort String and add 3 dot at last point of string

.sortTitle {
    width: calc(100% - 20px);
    display: inline;
    text-overflow: ellipsis;   
    white-space: nowrap; 
    overflow: hidden;
}

Dec 7, 2015

Create thumbnail image in PHP

Image.php

<?php

/**
 * Class Image
 * @author UTC.HuyTD
 */
class Image
{

    private $file;
    private $image;
    private $info;

    /**
     * @param $file
     */
    public function __construct($file)
    {
        if (file_exists($file)) {
            $this->file = $file;

            $info = getimagesize($file);

            $this->info = array(
                'width' => $info[0],
                'height' => $info[1],
                'bits' => $info['bits'],
                'mime' => $info['mime'],
            );

            $this->image = $this->create($file);
        } else {
            exit('Error: Could not load image ' . $file . '!');
        }
    }

    /**
     * @param $image
     * @return bool|resource
     */
    private function create($image)
    {
        $mime = $this->info['mime'];

        if ($mime == 'image/gif') {
            return imagecreatefromgif($image);
        } elseif ($mime == 'image/png') {
            return imagecreatefrompng($image);
        } elseif ($mime == 'image/jpeg') {
            return imagecreatefromjpeg($image);
        }
        return false;
    }

    /**
     * @param $file
     * @param int $quality
     */
    public function save($file, $quality = 90)
    {
        $info = pathinfo($file);

        $extension = strtolower($info['extension']);

        if (is_resource($this->image)) {
            if ($extension == 'jpeg' || $extension == 'jpg') {
                imagejpeg($this->image, $file, $quality);
            } elseif ($extension == 'png') {
                imagepng($this->image, $file);
            } elseif ($extension == 'gif') {
                imagegif($this->image, $file);
            }

            imagedestroy($this->image);
        }
    }

    /**
     * Resize function
     * @param int $width
     * @param int $height
     * @param string $default char [default, w, h]
     *    default = scale with white space,
     *    w = fill according to width,
     *    h = fill according to height
     */
    public function resize($width = 0, $height = 0, $default = '')
    {
        if (!$this->info['width'] || !$this->info['height']) {
            return;
        }

        $positionX = 0;
        $positionY = 0;
        $scale = 1;

        $scale_w = $width / $this->info['width'];
        $scale_h = $height / $this->info['height'];

        if ($default == 'w') {
            $scale = $scale_w;
        } elseif ($default == 'h') {
            $scale = $scale_h;
        } else {
            $scale = min($scale_w, $scale_h);
        }

        if ($scale == 1 && $scale_h == $scale_w && $this->info['mime'] != 'image/png') {
            return;
        }

        $new_width = (int)($this->info['width'] * $scale);
        $new_height = (int)($this->info['height'] * $scale);
        $positionX = (int)(($width - $new_width) / 2);
        $positionY = (int)(($height - $new_height) / 2);

        $image_old = $this->image;
        $width = $width === 0 ? $this->info['width'] : $width;
        $height = $height === 0 ? $this->info['height'] : $height;
        $this->image = imagecreatetruecolor($width, $height);

        if (isset($this->info['mime']) && $this->info['mime'] == 'image/png') {
            imagealphablending($this->image, false);
            imagesavealpha($this->image, true);
            $background = imagecolorallocatealpha($this->image, 255, 255, 255, 127);
            imagecolortransparent($this->image, $background);
        } else {
            $background = imagecolorallocate($this->image, 255, 255, 255);
        }

        imagefilledrectangle($this->image, 0, 0, $width, $height, $background);

        imagecopyresampled($this->image, $image_old, $positionX, $positionY, 0, 0, $new_width, $new_height, $this->info['width'], $this->info['height']);
        imagedestroy($image_old);

        $this->info['width'] = $width;
        $this->info['height'] = $height;
    }

    /**
     * @param $file
     * @param string $position
     */
    public function watermark($file, $position = 'bottomright')
    {
        $watermark = $this->create($file);

        $watermark_width = imagesx($watermark);
        $watermark_height = imagesy($watermark);
        $watermark_pos_x = null;
        $watermark_pos_y = null;
        switch ($position) {
            case 'topleft':
                $watermark_pos_x = 0;
                $watermark_pos_y = 0;
                break;
            case 'topright':
                $watermark_pos_x = $this->info['width'] - $watermark_width;
                $watermark_pos_y = 0;
                break;
            case 'bottomleft':
                $watermark_pos_x = 0;
                $watermark_pos_y = $this->info['height'] - $watermark_height;
                break;
            case 'bottomright':
                $watermark_pos_x = $this->info['width'] - $watermark_width;
                $watermark_pos_y = $this->info['height'] - $watermark_height;
                break;
        }

        imagecopy($this->image, $watermark, $watermark_pos_x, $watermark_pos_y, 0, 0, 120, 40);

        imagedestroy($watermark);
    }

    /**
     * Crop function
     * @param $top_x
     * @param $top_y
     * @param $bottom_x
     * @param $bottom_y
     */
    public function crop($top_x, $top_y, $bottom_x, $bottom_y)
    {
        $image_old = $this->image;
        $this->image = imagecreatetruecolor($bottom_x - $top_x, $bottom_y - $top_y);

        imagecopy($this->image, $image_old, 0, 0, $top_x, $top_y, $this->info['width'], $this->info['height']);
        imagedestroy($image_old);

        $this->info['width'] = $bottom_x - $top_x;
        $this->info['height'] = $bottom_y - $top_y;
    }

    /**
     * Rotate function
     * @param $degree
     * @param string $color
     */
    public function rotate($degree, $color = 'FFFFFF')
    {
        $rgb = $this->html2rgb($color);

        $this->image = imagerotate($this->image, $degree, imagecolorallocate($this->image, $rgb[0], $rgb[1], $rgb[2]));

        $this->info['width'] = imagesx($this->image);
        $this->info['height'] = imagesy($this->image);
    }

    /**
     * @param $filter
     */
    private function filter($filter)
    {
        imagefilter($this->image, $filter);
    }

    /**
     * Text function
     * @param $text
     * @param int $x
     * @param int $y
     * @param int $size
     * @param string $color
     */
    private function text($text, $x = 0, $y = 0, $size = 5, $color = '000000')
    {
        $rgb = $this->html2rgb($color);

        imagestring($this->image, $size, $x, $y, $text, imagecolorallocate($this->image, $rgb[0], $rgb[1], $rgb[2]));
    }

    /**
     * Merge function
     * @param $file
     * @param int $x
     * @param int $y
     * @param int $opacity
     */
    private function merge($file, $x = 0, $y = 0, $opacity = 100)
    {
        $merge = $this->create($file);

        $merge_width = imagesx($this->$image);
        $merge_height = imagesy($this->$image);

        imagecopymerge($this->image, $merge, $x, $y, 0, 0, $merge_width, $merge_height, $opacity);
    }

    /**
     * @param $color
     * @return array|bool
     */
    private function html2rgb($color)
    {
        if ($color[0] == '#') {
            $color = substr($color, 1);
        }

        if (strlen($color) == 6) {
            list($r, $g, $b) = array($color[0] . $color[1], $color[2] . $color[3], $color[4] . $color[5]);
        } elseif (strlen($color) == 3) {
            list($r, $g, $b) = array($color[0] . $color[0], $color[1] . $color[1], $color[2] . $color[2]);
        } else {
            return false;
        }

        $r = hexdec($r);
        $g = hexdec($g);
        $b = hexdec($b);

        return array($r, $g, $b);
    }

}

ImageTool.php

<?php

/**
 * Class ImageTool
 * @author UTC.HuyTD
 */
class ImageTool
{
    /**
     * Resize thumbnail Image
     * @param $folderPathOfThumbnail
     * @param $filename
     * @param int $width
     * @param int $height
     * @return string
     */
    public static function resizeThumbnailImage($folderPathOfThumbnail, $filename, $width = 0, $height = 0)
    {
        try {
            if (file_exists($filename)) {
                $fileInfo = pathinfo($filename);
                $fileExtension = $fileInfo['extension'];

                $thumbnailFileName = $fileInfo['filename'] . "_thumbnail." . $fileExtension;

                // Create image with width & height
                $image = new Image($filename);
                $image->resize($width, $height);
                $image->save($folderPathOfThumbnail . "/" . $thumbnailFileName);

                return $folderPathOfThumbnail . "/" . $thumbnailFileName;
            }
        } catch (Exception $e) {
            echo $e->getMessage();
        }
        return "";
    }
}

Using function createThumbnail

/**
 * Create thumbnail image
 * @param $folderPathOfThumbnail
 * @param string $directImage
 * @param int $defaultWidth
 * @return string
 */
public static function createThumbnailImage($folderPathOfThumbnail, $directImage = 'images/no_image.jpg', $defaultWidth = 150)
{
    $thumbnailPathCreated = "";

    if ($defaultWidth == "") {
        return $directImage;
    }

    if (file_exists($directImage)) {
        $size = getimagesize($directImage);

        // Get image width & height
        $imgWidth = $size[0];
        $imgHeight = $size[1];

        if ($imgHeight > $imgWidth) {
            if ($imgHeight != $defaultWidth) {
                $imgHeightNew = $defaultWidth;
                $scaleHeight = round($imgHeightNew / $imgHeight, 2);
                $imgWidthNew = $imgWidth * $scaleHeight;
                // Create thumbnail image
                $thumbnailPathCreated = ImageTool::resizeThumbnailImage($folderPathOfThumbnail, $directImage, $imgWidthNew, $imgHeightNew);
            }
        } else {
            if ($imgWidth != $defaultWidth) {
                $scale = round($defaultWidth / $imgWidth, 2);
                // Create thumbnail image
                $thumbnailPathCreated = ImageTool::resizeThumbnailImage($folderPathOfThumbnail, $directImage, $imgWidth*$scale, $imgHeight*$scale);
            }
        }
    }

    if ($thumbnailPathCreated != "") {
        if (substr($thumbnailPathCreated, 0, 1) == "/")
            $thumbnailPathCreated = substr($thumbnailPathCreated, 1);
    }
    return $thumbnailPathCreated;
}

$thumbFolder = Yii::getPathOfAlias('webroot').'/upload/thumbnails';
$img = Yii::getPathOfAlias('webroot') . '/upload/avatars/Tulips.jpg' ;
$this->createThumbnailImage($thumbFolder, $img  , 50);

Dec 4, 2015

Convert UTC Time to Client Time by moment JS

/**
 * Javascript for convert time (using moment JS)
 * @author UTC.KongLtn
 * Last Update: 4/12/2015
 */


var clientTimeId = {
    getArchiveClientTime: ".getArchiveClientTime"
};

/**
 * Client Time Object
 * @type {{init: Function, convertInArchive: Function, toArchiveTime: Function, getDiffTime: Function, getDateYYMMDD: Function}}
 */
var clientTime = {
    init: function(){
        this.convertInArchive();
    },
    /**
     * Convert to client time in archive page
     */
    convertInArchive : function(){
        var archiveArray = $(clientTimeId.getArchiveClientTime);
        $.each(archiveArray, function(index, val) {
            var createDateToUTCSeconds = moment.utc(val.textContent).unix();
            $(this).text(clientTime.getArchiveTime(createDateToUTCSeconds));
        })
    },
    /**
     * Get client Time in archive page
     * @param seconds
     * @returns string
     */
    getArchiveTime : function(seconds){
        var createDate = moment.utc(seconds * 1000);
        var nowDate = moment.utc();
        var diff = nowDate.diff(createDate, "minutes");
        var firstText = "";

        if (diff < 1440) {
            firstText = "Today ";
        } else if (diff < 2880) {
            firstText = "Yesterday ";
        } else if (diff >= 2880) {
            return (createDate.local().format("DD.MM.YYYY HH:mm"));
        }
        return firstText+ " "+ createDate.local().format("HH:mm");
    },
    /**
     * Get the different past time and current time
     * @param seconds
     * @returns string
     */
    getDiffTime: function(seconds) {
        var createDate = moment.utc(seconds * 1000);
        var nowDate = moment.utc();
        var diff = nowDate.diff(createDate, "seconds");
        diff = (diff == 0 || diff == 1) ? 2 : diff;
        if (2 <= diff && diff <= 45) {
            return diff + " seconds ago";
        } else if ( 86400 < diff ) {
            return createDate.local().format("DD.MM.YYYY HH:mm");
        } else {
            return createDate.fromNow();
        }
    },
    /**
     * Get date by format YY.MM.DD
      * @param seconds
     * @returns string
     */
    getDateYYMMDD : function(seconds) {
        return moment.utc(seconds*1000).local().format("YY.MM.DD");
    }

};

$(document).ready(function(){
    'use strict';
    if (isGuestId > 0) {
        //console.log("start");
        clientTime.init();
    }
});

Dec 3, 2015

SETUP YII with WAMPP

1/ copy file from http://www.yiiframework.com/download to c:\wamp\www folder
rename yii-1.1.13.... folder to yii
(c:\wamp\www\yii and the framework itself will be into c:\wamp\www\yii\framework)

2/ on c:\wamp\www creates a file with the extension 'bat' (for example myrun.bat),
then open it and put below code:

set PATH=%PATH%;C:\wamp\bin\php\php5.4.3
cmd

3/ Run myrun.bat file and type (or you can cd to ..wamp/www/ folder and type)
php yii/framework/yiic.php webapp myfirst

4/ Config databases
Create database MySQL and fix file
protected/config/database.php

5/ CRUD Create-Read-Update-Delete
Edit file protected/config/main.php
'gii'=>array(
'class'=>'system.gii.GiiModule',
'password'=>'1',
// If removed, Gii defaults to localhost only. Edit carefully to taste.
'ipFilters'=>array('127.0.0.1','::1'),
)

Go to http://localhost/myfirst/index.php?r=gii

Nov 25, 2015

Install JWT (JSON Web Token) - PHP

JWT.php

<?php

//namespace Firebase\JWT;
//use \DomainException;
//use \InvalidArgumentException;
//use \UnexpectedValueException;
//use \DateTime;

/**
 * JSON Web Token implementation, based on this spec:
 * http://tools.ietf.org/html/draft-ietf-oauth-json-web-token-06
 *
 * PHP version 5
 *
 * @category Authentication
 * @package  Authentication_JWT
 * @author   Neuman Vong <neuman@twilio.com>
 * @author   Anant Narayanan <anant@php.net>
 * @license  http://opensource.org/licenses/BSD-3-Clause 3-clause BSD
 * @link     https://github.com/firebase/php-jwt
 */
class JWT
{

    /**
     * When checking nbf, iat or expiration times,
     * we want to provide some extra leeway time to
     * account for clock skew.
     */
    public static $leeway = 0;

    public static $supported_algs = array(
        'HS256' => array('hash_hmac', 'SHA256'),
        'HS512' => array('hash_hmac', 'SHA512'),
        'HS384' => array('hash_hmac', 'SHA384'),
        'RS256' => array('openssl', 'SHA256'),
    );

    /**
     * Decodes a JWT string into a PHP object.
     *
     * @param string            $jwt            The JWT
     * @param string|array|null $key            The key, or map of keys.
     *                                          If the algorithm used is asymmetric, this is the public key
     * @param array             $allowed_algs   List of supported verification algorithms
     *                                          Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256'
     *
     * @return object The JWT's payload as a PHP object
     *
     * @throws DomainException              Algorithm was not provided
     * @throws UnexpectedValueException     Provided JWT was invalid
     * @throws SignatureInvalidException    Provided JWT was invalid because the signature verification failed
     * @throws BeforeValidException         Provided JWT is trying to be used before it's eligible as defined by 'nbf'
     * @throws BeforeValidException         Provided JWT is trying to be used before it's been created as defined by 'iat'
     * @throws ExpiredException             Provided JWT has since expired, as defined by the 'exp' claim
     *
     * @uses jsonDecode
     * @uses urlsafeB64Decode
     */
    public static function decode($jwt, $key, $allowed_algs = array())
    {
        if (empty($key)) {
            throw new InvalidArgumentException('Key may not be empty');
        }
        $tks = explode('.', $jwt);
        if (count($tks) != 3) {
            throw new UnexpectedValueException('Wrong number of segments');
        }
        list($headb64, $bodyb64, $cryptob64) = $tks;
        if (null === ($header = JWT::jsonDecode(JWT::urlsafeB64Decode($headb64)))) {
            throw new UnexpectedValueException('Invalid header encoding');
        }
        if (null === $payload = JWT::jsonDecode(JWT::urlsafeB64Decode($bodyb64))) {
            throw new UnexpectedValueException('Invalid claims encoding');
        }
        $sig = JWT::urlsafeB64Decode($cryptob64);
        
        if (empty($header->alg)) {
            throw new DomainException('Empty algorithm');
        }
        if (empty(self::$supported_algs[$header->alg])) {
            throw new DomainException('Algorithm not supported');
        }
        if (!is_array($allowed_algs) || !in_array($header->alg, $allowed_algs)) {
            throw new DomainException('Algorithm not allowed');
        }
        if (is_array($key) || $key instanceof \ArrayAccess) {
            if (isset($header->kid)) {
                $key = $key[$header->kid];
            } else {
                throw new DomainException('"kid" empty, unable to lookup correct key');
            }
        }

        // Check the signature
        if (!JWT::verify("$headb64.$bodyb64", $sig, $key, $header->alg)) {
            throw new SignatureInvalidException('Signature verification failed');
        }

        // Check if the nbf if it is defined. This is the time that the
        // token can actually be used. If it's not yet that time, abort.
        if (isset($payload->nbf) && $payload->nbf > (time() + self::$leeway)) {
            throw new BeforeValidException(
                'Cannot handle token prior to ' . date(DateTime::ISO8601, $payload->nbf)
            );
        }

        // Check that this token has been created before 'now'. This prevents
        // using tokens that have been created for later use (and haven't
        // correctly used the nbf claim).
        if (isset($payload->iat) && $payload->iat > (time() + self::$leeway)) {
            throw new BeforeValidException(
                'Cannot handle token prior to ' . date(DateTime::ISO8601, $payload->iat)
            );
        }

        // Check if this token has expired.
        if (isset($payload->exp) && (time() - self::$leeway) >= $payload->exp) {
            throw new ExpiredException('Expired token');
        }

        return $payload;
    }

    /**
     * Converts and signs a PHP object or array into a JWT string.
     *
     * @param object|array  $payload    PHP object or array
     * @param string        $key        The secret key.
     *                                  If the algorithm used is asymmetric, this is the private key
     * @param string        $alg        The signing algorithm.
     *                                  Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256'
     * @param array         $head       An array with header elements to attach
     *
     * @return string A signed JWT
     *
     * @uses jsonEncode
     * @uses urlsafeB64Encode
     */
    public static function encode($payload, $key, $alg = 'HS256', $keyId = null, $head = null)
    {
        $header = array('typ' => 'JWT', 'alg' => $alg);
        if ($keyId !== null) {
            $header['kid'] = $keyId;
        }
        if ( isset($head) && is_array($head) ) {
            $header = array_merge($head, $header);
        }
        $segments = array();
        $segments[] = JWT::urlsafeB64Encode(JWT::jsonEncode($header));
        $segments[] = JWT::urlsafeB64Encode(JWT::jsonEncode($payload));
        $signing_input = implode('.', $segments);

        $signature = JWT::sign($signing_input, $key, $alg);
        $segments[] = JWT::urlsafeB64Encode($signature);

        return implode('.', $segments);
    }

    /**
     * Sign a string with a given key and algorithm.
     *
     * @param string            $msg    The message to sign
     * @param string|resource   $key    The secret key
     * @param string            $alg    The signing algorithm.
     *                                  Supported algorithms are 'HS256', 'HS384', 'HS512' and 'RS256'
     *
     * @return string An encrypted message
     *
     * @throws DomainException Unsupported algorithm was specified
     */
    public static function sign($msg, $key, $alg = 'HS256')
    {
        if (empty(self::$supported_algs[$alg])) {
            throw new DomainException('Algorithm not supported');
        }
        list($function, $algorithm) = self::$supported_algs[$alg];
        switch($function) {
            case 'hash_hmac':
                return hash_hmac($algorithm, $msg, $key, true);
            case 'openssl':
                $signature = '';
                $success = openssl_sign($msg, $signature, $key, $algorithm);
                if (!$success) {
                    throw new DomainException("OpenSSL unable to sign data");
                } else {
                    return $signature;
                }
        }
    }

    /**
     * Verify a signature with the message, key and method. Not all methods
     * are symmetric, so we must have a separate verify and sign method.
     *
     * @param string            $msg        The original message (header and body)
     * @param string            $signature  The original signature
     * @param string|resource   $key        For HS*, a string key works. for RS*, must be a resource of an openssl public key
     * @param string            $alg        The algorithm
     *
     * @return bool
     *
     * @throws DomainException Invalid Algorithm or OpenSSL failure
     */
    private static function verify($msg, $signature, $key, $alg)
    {
        if (empty(self::$supported_algs[$alg])) {
            throw new DomainException('Algorithm not supported');
        }

        list($function, $algorithm) = self::$supported_algs[$alg];
        switch($function) {
            case 'openssl':
                $success = openssl_verify($msg, $signature, $key, $algorithm);
                if (!$success) {
                    throw new DomainException("OpenSSL unable to verify data: " . openssl_error_string());
                } else {
                    return $signature;
                }
            case 'hash_hmac':
            default:
                $hash = hash_hmac($algorithm, $msg, $key, true);
                if (function_exists('hash_equals')) {
                    return hash_equals($signature, $hash);
                }
                $len = min(self::safeStrlen($signature), self::safeStrlen($hash));

                $status = 0;
                for ($i = 0; $i < $len; $i++) {
                    $status |= (ord($signature[$i]) ^ ord($hash[$i]));
                }
                $status |= (self::safeStrlen($signature) ^ self::safeStrlen($hash));

                return ($status === 0);
        }
    }

    /**
     * Decode a JSON string into a PHP object.
     *
     * @param string $input JSON string
     *
     * @return object Object representation of JSON string
     *
     * @throws DomainException Provided string was invalid JSON
     */
    public static function jsonDecode($input)
    {
        if (version_compare(PHP_VERSION, '5.4.0', '>=') && !(defined('JSON_C_VERSION') && PHP_INT_SIZE > 4)) {
            /** In PHP >=5.4.0, json_decode() accepts an options parameter, that allows you
             * to specify that large ints (like Steam Transaction IDs) should be treated as
             * strings, rather than the PHP default behaviour of converting them to floats.
             */
            $obj = json_decode($input, false, 512, JSON_BIGINT_AS_STRING);
        } else {
            /** Not all servers will support that, however, so for older versions we must
             * manually detect large ints in the JSON string and quote them (thus converting
             *them to strings) before decoding, hence the preg_replace() call.
             */
            $max_int_length = strlen((string) PHP_INT_MAX) - 1;
            $json_without_bigints = preg_replace('/:\s*(-?\d{'.$max_int_length.',})/', ': "$1"', $input);
            $obj = json_decode($json_without_bigints);
        }

        if (function_exists('json_last_error') && $errno = json_last_error()) {
            JWT::handleJsonError($errno);
        } elseif ($obj === null && $input !== 'null') {
            throw new DomainException('Null result with non-null input');
        }
        return $obj;
    }

    /**
     * Encode a PHP object into a JSON string.
     *
     * @param object|array $input A PHP object or array
     *
     * @return string JSON representation of the PHP object or array
     *
     * @throws DomainException Provided object could not be encoded to valid JSON
     */
    public static function jsonEncode($input)
    {
        $json = json_encode($input);
        if (function_exists('json_last_error') && $errno = json_last_error()) {
            JWT::handleJsonError($errno);
        } elseif ($json === 'null' && $input !== null) {
            throw new DomainException('Null result with non-null input');
        }
        return $json;
    }

    /**
     * Decode a string with URL-safe Base64.
     *
     * @param string $input A Base64 encoded string
     *
     * @return string A decoded string
     */
    public static function urlsafeB64Decode($input)
    {
        $remainder = strlen($input) % 4;
        if ($remainder) {
            $padlen = 4 - $remainder;
            $input .= str_repeat('=', $padlen);
        }
        return base64_decode(strtr($input, '-_', '+/'));
    }

    /**
     * Encode a string with URL-safe Base64.
     *
     * @param string $input The string you want encoded
     *
     * @return string The base64 encode of what you passed in
     */
    public static function urlsafeB64Encode($input)
    {
        return str_replace('=', '', strtr(base64_encode($input), '+/', '-_'));
    }

    /**
     * Helper method to create a JSON error.
     *
     * @param int $errno An error number from json_last_error()
     *
     * @return void
     */
    private static function handleJsonError($errno)
    {
        $messages = array(
            JSON_ERROR_DEPTH => 'Maximum stack depth exceeded',
            JSON_ERROR_CTRL_CHAR => 'Unexpected control character found',
            JSON_ERROR_SYNTAX => 'Syntax error, malformed JSON'
        );
        throw new DomainException(
            isset($messages[$errno])
            ? $messages[$errno]
            : 'Unknown JSON error: ' . $errno
        );
    }

    /**
     * Get the number of bytes in cryptographic strings.
     *
     * @param string
     *
     * @return int
     */
    private static function safeStrlen($str)
    {
        if (function_exists('mb_strlen')) {
            return mb_strlen($str, '8bit');
        }
        return strlen($str);
    }
}

Demo Example:

<?php
use \Firebase\JWT\JWT;

$key = "example_key";
$token = array(
    "iss" => "http://example.org",
    "aud" => "http://example.com",
    "iat" => 1356999524,
    "nbf" => 1357000000
);

/**
 * IMPORTANT:
 * You must specify supported algorithms for your application. See
 * https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40
 * for a list of spec-compliant algorithms.
 */
$jwt = JWT::encode($token, $key);
$decoded = JWT::decode($jwt, $key, array('HS256'));

print_r($decoded);

/*
 NOTE: This will now be an object instead of an associative array. To get
 an associative array, you will need to cast it as such:
*/

$decoded_array = (array) $decoded;

/**
 * You can add a leeway to account for when there is a clock skew times between
 * the signing and verifying servers. It is recommended that this leeway should
 * not be bigger than a few minutes.
 *
 * Source: http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html#nbfDef
 */
JWT::$leeway = 60; // $leeway in seconds
$decoded = JWT::decode($jwt, $key, array('HS256'));

?>

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