PHP生成推广海报的方法分享

/**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(),$filename=""){//如果要看报什么错，可以先注释调这个headerif(empty($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);}}

//2. 在生成的二维码中加上logo(生成图片文件) function scerweima1($url=''){ require_once 'phpqrcode.php'; $value = $url; //二维码内容 $errorCorrectionLevel = 'H'; //容错级别 $matrixPointSize = 6; //生成图片大小 //生成二维码图片 $filename = 'qrcode/'.microtime().'.png'; QRcode::png($value,$filename , $errorCorrectionLevel, $matrixPointSize, 2); $logo = 'qrcode/logo.jpg'; //准备好的logo图片 $QR = $filename; //已经生成的原始二维码图 if (file_exists($logo)) { $QR = imagecreatefromstring(file_get_contents($QR)); //目标图象连接资源。 $logo = imagecreatefromstring(file_get_contents($logo)); //源图象连接资源。 $QR_width = imagesx($QR); //二维码图片宽度 $QR_height = imagesy($QR); //二维码图片高度 $logo_width = imagesx($logo); //logo图片宽度 $logo_height = imagesy($logo); //logo图片高度 $logo_qr_width = $QR_width / 4; //组合之后logo的宽度(占二维码的1/5) $scale = $logo_width/$logo_qr_width; //logo的宽度缩放比(本身宽度/组合后的宽度) $logo_qr_height = $logo_height/$scale; //组合之后logo的高度 $from_width = ($QR_width - $logo_qr_width) / 2; //组合之后logo左上角所在坐标点 //重新组合图片并调整大小 /*imagecopyresampled() 将一幅图像(源图象)中的一块正方形区域拷贝到另一个图像中 */ imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width,$logo_qr_height, $logo_width, $logo_height); } //输出图片 imagepng($QR, 'qrcode.png'); imagedestroy($QR); imagedestroy($logo); return '<img src="qrcode.png" alt="使用微信扫描支付">'; } //调用查看结果 echo scerweima1('https://www.baidu.com');

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