PHP poster QR code synthesis

Combined parameter method ：

/**
     * [user_qrcode  Parameter combination ]
     * @param  [type]  $bgImg   [ Background map ]
     * @param  [type]  $codeImg [ QR code ]
     * @param  string  $name    [ name ]
     * @param  string  $remask  [ remarks ]
     * @param  string  $content [ describe ]
     * @param  integer $key     [ Generate a QR code name to represent ]
     * @return [type]           [description]
     */
public function user_qrcode($bgImg,$codeImg,$name=" I'm little Hongmao ",$remask=" Invite you to join XXX  Surprise when buying ",$content=" Long press to identify or scan QR code to enter ",$key=0){


        $config = array(
          'text'=>array(
            array(
              'text'=>$name,
              'left'=>250,
              'top'=>815,
              'fontPath'=>'/public/upload/ttf/simhei.ttf', // Font files need to be added to download and import 
              'fontSize'=>22,          // Font size 
              'fontColor'=>'0,0,0',    // The font color 
              'angle'=>0,
              'text-aligin' => 'left'
            ),
            array(
              'text'=>$remask,
              'left'=>250,
              'top'=>860,
              'fontPath'=>'/public/upload/ttf/simhei.ttf', // Font files need to be added to download and import 
              'fontSize'=>18,             // Font size 
              'fontColor'=>'143,143,143',    // The font color 
              'angle'=>0,
              'text-aligin' => 'left'
            ),
            array(
              'text'=>'—— '.$content.' ——',
              'left'=>0,
              'right'=>0,
              'top'=>970,
              'fontPath'=>'/public/upload/ttf/simhei.ttf', // Font files need to be added to download and import 
              'fontSize'=>16,             // Font size 
              'fontColor'=>'169,169,169',    // The font color 
              'angle'=>0,
              'text-aligin' => 'center'  // The font is centered , Only center Effective , Nothing else 
            )
          ),
          'image'=>array(
            array(
              'url'=>$codeImg,       // Image resource path 
              'stream'=>0,
                    'left'=>50,
                    'top'=>740,
                    'right'=>0,
                    'bottom'=>0,
                    'width'=>180,
                    'height'=>180,
                    'opacity'=>100
            ),
          ),
          'background'=>$bgImg,
        );

        $filename = "/public/upload/share_code/".time().rand(0000,9999).$num.".png";
        return $this->createPoster($config,$filename);
        
    }

Poster synthesis method

/**
     *  Generate posters 
     * @param  array     Parameters , Including pictures and words 
     * @param  string   $filename  Generate poster file name , If this parameter is not passed, no file will be generated , Direct output picture 
     * @return [type] [description]
     */
    public function createPoster($config=array(),$filename=""){

        // If there's anything wrong with reading the newspaper , You can note this first header 
        if(empty($filename)) header("content-type: image/png");
            $imageDefault = array(
                'left'=>0,
                'top'=>0,
                'right'=>0,
                'bottom'=>0,
                'width'=>100,
                'height'=>100,
                'opacity'=>100
            );
            $textDefault =  array(
                'text'=>'',
                'left'=>0,
                'top'=>0,
                'fontSize'=>32,             // Font size 
                'fontColor'=>'255,255,255', // The font color 
                'angle'=>0,
            );
        $background = $config['background'];// The bottom background of the poster   
        // Background method 
        $backgroundInfo = getimagesize($background);
        $backgroundFun = 'imagecreatefrom'.image_type_to_extension($backgroundInfo[2], false);
        $background = $backgroundFun($background);
     
        $backgroundWidth = imagesx($background);    // Background width 
        $backgroundHeight = imagesy($background) + 300;   // Background height , Add... Here 300 Height , Bottom white area 
     
        $imageRes = imageCreatetruecolor($backgroundWidth,$backgroundHeight); 
        $color = imagecolorallocate($imageRes, 255, 255, 255);  
        imagefill($imageRes, 0, 0, $color);  
        // imageColorTransparent($imageRes, $color);    // The color is transparent 
        imagecopyresampled($imageRes,$background,0,0,0,0,imagesx($background),imagesy($background),imagesx($background),imagesy($background));
        // Processed pictures 
        if(!empty($config['image'])){
            foreach ($config['image'] as $key => $val) {
                $val = array_merge($imageDefault,$val);
                $info = getimagesize($val['url']);
                $function = 'imagecreatefrom'.image_type_to_extension($info[2], false);
                if($val['stream']){     // If it is a string image stream 
                    $info = getimagesizefromstring($val['url']);
                    $function = 'imagecreatefromstring';
                }
                $res = $function($val['url']);
                $resWidth = $info[0];
                $resHeight = $info[1];
                // Create Sketchpad  , Zoom the picture to the specified size 
                $canvas=imagecreatetruecolor($val['width'], $val['height']); 
                imagefill($canvas, 0, 0, $color);
                // The key function , Parameters （ Target resources , Source , The starting coordinate of the target resource x,y,  The starting coordinate of the source resource x,y, The width and height of the target resource w,h, The width and height of the source resource w,h） 
                imagecopyresampled($canvas, $res, 0, 0, 0, 0, $val['width'], $val['height'],$resWidth,$resHeight); 
                $val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']) - $val['width']:$val['left'];
                $val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']) - $val['height']:$val['top'];
                // Place image 
                imagecopymerge($imageRes,$canvas, $val['left'],$val['top'],$val['right'],$val['bottom'],$val['width'],$val['height'],$val['opacity']);// Left , On , Right , Next , Width , Height , transparency  
            }
        }
       
        // Working with text 
        if(!empty($config['text'])){

            foreach ($config['text'] as $key => $val) {

                $val = array_merge($textDefault,$val);

                list($R,$G,$B) = explode(',', $val['fontColor']);

                $fontColor = imagecolorallocate($imageRes, $R, $G, $B); 

                if($val['text-aligin'] == 'center'){

                    $fontBox = imagettfbbox($val['fontSize'], 0, $val['fontPath'], $val['text']);// Get the required size of the text 
                    // Center vertically and horizontally 
                    //imagettftext($imageRes, $val['fontSize'], $val['angle'], ceil(($backgroundWidth - $fontBox[2]) / 2), ceil(($backgroundHeight - $fontBox[1] - $fontBox[7]) / 2), $fontColor, $val['fontPath'], $val['text']);
                    // Horizontal center 
                    imagettftext($imageRes, $val['fontSize'], $val['angle'], ceil(($backgroundWidth - $fontBox[2]) / 2), $val['top'], $fontColor, $val['fontPath'], $val['text']);

                }else{

                    $val['left'] = $val['left']<0?$backgroundWidth- abs($val['left']):$val['left'];

                    $val['top'] = $val['top']<0?$backgroundHeight- abs($val['top']):$val['top'];

                    imagettftext($imageRes,$val['fontSize'],$val['angle'],$val['left'],$val['top'],$fontColor,$val['fontPath'],$val['text']);

                }

                 

            }
        }   
    
        // Generate pictures   
        if(!empty($filename)){
            
            $res = imagepng($imageRes,ROOT_PATH.$filename); // Save to local 
            imagedestroy($imageRes);
            if(!$res) return false;
            return $filename;
        }else{
           
            imagepng ($imageRes);          // Show... On the browser 
            imagedestroy($imageRes);
        }  
    }

design sketch ：