/** * 生成宣传海报 * @param array  参数,包括图片和文字 * @param string  $filename 生成海报文件名,不传此参数则不生成文件,直接输出图片 * @return [type] [description] */function createPoster($config=array(),$filename=""){  //如果要看报什么错，可以先注释调这个header  if(empty($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,       //字号    'fontColor'=>'255,255,255', //字体颜色    'angle'=>0,  );  $background = $config['background'];//海报最底层得背景  //背景方法  $backgroundInfo = getimagesize($background);  $backgroundFun = 'imagecreatefrom'.image_type_to_extension($backgroundInfo[2], false);  $background = $backgroundFun($background);  $backgroundWidth = imagesx($background);  //背景宽度  $backgroundHeight = imagesy($background);  //背景高度  $imageRes = imageCreatetruecolor($backgroundWidth,$backgroundHeight);  $color = imagecolorallocate($imageRes, 0, 0, 0);  imagefill($imageRes, 0, 0, $color);  // imageColorTransparent($imageRes, $color);  //颜色透明  imagecopyresampled($imageRes,$background,0,0,0,0,imagesx($background),imagesy($background),imagesx($background),imagesy($background));  //处理了图片  if(!empty($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']){   //如果传的是字符串图像流        $info = getimagesizefromstring($val['url']);        $function = 'imagecreatefromstring';      }      $res = $function($val['url']);      $resWidth = $info[0];      $resHeight = $info[1];      //建立画板 ，缩放图片至指定尺寸      $canvas=imagecreatetruecolor($val['width'], $val['height']);      imagefill($canvas, 0, 0, $color);      //关键函数，参数（目标资源，源，目标资源的开始坐标x,y, 源资源的开始坐标x,y,目标资源的宽高w,h,源资源的宽高w,h）      imagecopyresampled($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'];      //放置图像      imagecopymerge($imageRes,$canvas, $val['left'],$val['top'],$val['right'],$val['bottom'],$val['width'],$val['height'],$val['opacity']);//左，上，右，下，宽度，高度，透明度    }  }  //处理文字  if(!empty($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);      $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']);    }  }  //生成图片  if(!empty($filename)){    $res = imagejpeg ($imageRes,$filename,90); //保存到本地    imagedestroy($imageRes);    if(!$res) return false;    return $filename;  }else{    imagejpeg ($imageRes);     //在浏览器上显示    imagedestroy($imageRes);  }}

$config = array(  'image'=>array(    array(      'url'=>'qrcode/qrcode.png',     //二维码资源      'stream'=>0,      'left'=>116,      'top'=>-216,      'right'=>0,      'bottom'=>0,      'width'=>178,      'height'=>178,      'opacity'=>100    )  ),  'background'=>'bg/bg1.jpg'          //背景图);$filename = 'bg/'.time().'.jpg';//echo createPoster($config,$filename);echo createPoster($config);

$config = array(  'text'=>array(    array(      'text'=>'昵称',      'left'=>182,      'top'=>105,      'fontPath'=>'qrcode/simhei.ttf',     //字体文件      'fontSize'=>18,             //字号      'fontColor'=>'255,0,0',       //字体颜色      'angle'=>0,    )  ),  'image'=>array(    array(      'url'=>'qrcode/qrcode.png',       //图片资源路径      'left'=>130,      'top'=>-140,      'stream'=>0,             //图片资源是否是字符串图像流      'right'=>0,      'bottom'=>0,      'width'=>150,      'height'=>150,      'opacity'=>100    ),    array(      'url'=>'https://wx.qlogo.cn/mmopen/vi_32/DYAIOgq83eofD96opK97RXwM179G9IJytIgqXod8jH9icFf6Cia6sJ0fxeILLMLf0dVviaF3SnibxtrFaVO3c8Ria2w/0',      'left'=>120,      'top'=>70,      'right'=>0,      'stream'=>0,      'bottom'=>0,      'width'=>55,      'height'=>55,      'opacity'=>100    ),  ),  'background'=>'qrcode/bjim.jpg',);$filename = 'qrcode/'.time().'.jpg';//echo createPoster($config,$filename);echo createPoster($config);