qr.php

<?php
        /**
         * QR_BarCode - Barcode QR Code Image Generator
         * @author CodexWorld
         * @url http://www.codexworld.com
         * @license http://www.codexworld.com/license/
         */
        class QR_BarCode{
            // Google Chart API URL
            private $googleChartAPI = 'http://chart.apis.google.com/chart';
            // Code data
            private $codeData;
            
            /**
             * URL QR code
             * @param string $url
             */
            public function url($url = null){
                $this->codeData = preg_match("#^https?\:\/\/#", $url) ? $url : "http://{$url}";
            }
            
            /**
             * Text QR code
             * @param string $text
             */
            public function text($text){
                $this->codeData = $text;
            }
            
            /**
             * Email address QR code
             *
             * @param string $email
             * @param string $subject
             * @param string $message
             */
            public function email($email = null, $subject = null, $message = null) {
                $this->codeData = "MATMSG:TO:{$email};SUB:{$subject};BODY:{$message};;";
            }
            
            /**
             * Phone QR code
             * @param string $phone
             */
            public function phone($phone){
                $this->codeData = "TEL:{$phone}";
            }
            
            /**
             * SMS QR code
             *
             * @param string $phone
             * @param string $text
             */
            public function sms($phone = null, $msg = null) {
                $this->codeData = "SMSTO:{$phone}:{$msg}";
            }
            
            /**
             * VCARD QR code
             *
             * @param string $name
             * @param string $address
             * @param string $phone
             * @param string $email
             */
            public function contact($name = null, $address = null, $phone = null, $email = null) {
                $this->codeData = "MECARD:N:{$name};ADR:{$address};TEL:{$phone};EMAIL:{$email};;";
            }
            
            /**
             * Content (gif, jpg, png, etc.) QR code
             *
             * @param string $type
             * @param string $size
             * @param string $content
             */
            public function content($type = null, $size = null, $content = null) {
                $this->codeData = "CNTS:TYPE:{$type};LNG:{$size};BODY:{$content};;";
            }
            
            /**
             * Generate QR code image
             *
             * @param int $size
             * @param string $filename
             * @return bool
             */
            public function qrCode($size = 200, $filename = null) {
                $ch = curl_init();
                curl_setopt($ch, CURLOPT_URL, $this->googleChartAPI);
                curl_setopt($ch, CURLOPT_POST, true);
                curl_setopt($ch, CURLOPT_POSTFIELDS, "chs={$size}x{$size}&cht=qr&chl=" . urlencode($this->codeData));
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($ch, CURLOPT_HEADER, false);
                curl_setopt($ch, CURLOPT_TIMEOUT, 30);
                $img = curl_exec($ch);
                curl_close($ch);
            
                if($img) {
                    if($filename) {
                        if(!preg_match("#\.png$#i", $filename)) {
                            $filename .= ".png";
                        }
                        
                        return file_put_contents($filename, $img);
                    } else {
                        header("Content-type: image/png");
                        print $img;
                        return true;
                    }
                }
                return false;
            }
        }
?>