php 绘制商品海报
2019-04-15 15:22发布
生成海报
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/**
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* 分享图片生成
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* @param $gData 商品数据,array
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* @param $codeName 二维码图片
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* @param $fileName string 保存文件名,默认空则直接输入图片
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*/
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function createSharePng($gData,$codeName,$fileName = ''){
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//创建画布
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$im = imagecreatetruecolor(618, 1000);
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//填充画布背景 {MOD}
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$color = imagecolorallocate($im, 255, 255, 255);
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imagefill($im, 0, 0, $color);
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//字体文件
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$font_file = "code_png/msyh.ttf";
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$font_file_bold = "code_png/msyh_bold.ttf";
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//设定字体的颜 {MOD}
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$font_color_1 = ImageColorAllocate ($im, 140, 140, 140);
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$font_color_2 = ImageColorAllocate ($im, 28, 28, 28);
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$font_color_3 = ImageColorAllocate ($im, 129, 129, 129);
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$font_color_red = ImageColorAllocate ($im, 217, 45, 32);
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$fang_bg_color = ImageColorAllocate ($im, 254, 216, 217);
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//Logo
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list($l_w,$l_h) = getimagesize('code_png/logo100_100.png');
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$logoImg = @imagecreatefrompng('code_png/logo100_100.png');
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imagecopyresized($im, $logoImg, 274, 28, 0, 0, 70, 70, $l_w, $l_h);
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//温馨提示
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imagettftext($im, 14,0, 100, 130, $font_color_1 ,$font_file, '温馨提示:喜欢长按图片识别二维码即可前往购买');
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//商品图片
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list($g_w,$g_h) = getimagesize($gData['pic']);
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$goodImg = createImageFromFile($gData['pic']);
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imagecopyresized($im, $goodImg, 0, 185, 0, 0, 618, 618, $g_w, $g_h);
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//二维码
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list($code_w,$code_h) = getimagesize($codeName);
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$codeImg = createImageFromFile($codeName);
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imagecopyresized($im, $codeImg, 440, 820, 0, 0, 170, 170, $code_w, $code_h);
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//商品描述
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$theTitle = cn_row_substr($gData['title'],2,19);
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imagettftext($im, 14,0, 8, 845, $font_color_2 ,$font_file, $theTitle[1]);
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imagettftext($im, 14,0, 8, 875, $font_color_2 ,$font_file, $theTitle[2]);
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imagettftext($im, 14,0, 8, 935, $font_color_2 ,$font_file, "券后价¥");
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imagettftext($im, 28,0, 80, 935, $font_color_red ,$font_file_bold, $gData["price"]);
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imagettftext($im, 14,0, 8,970, $font_color_3 ,$font_file, "现价¥".$gData["original_price"]);
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//优惠券
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if($gData['coupon_price']){
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imagerectangle ($im, 125 , 950 , 160 , 975 , $font_color_3);
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imagefilledrectangle ($im, 126 , 951 , 159 , 974 , $fang_bg_color);
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imagettftext($im, 14,0, 135,970, $font_color_3 ,$font_file, "券");
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$coupon_price = strval($gData['coupon_price']);
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imagerectangle ($im, 160 , 950 , 198 + (strlen($coupon_price)* 10), 975 , $font_color_3);
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imagettftext($im, 14,0, 170,970, $font_color_3 ,$font_file, $coupon_price."元");
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}
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//输出图片
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if($fileName){
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imagepng ($im,$fileName);
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}else{
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Header("Content-Type: image/png");
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imagepng ($im);
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}
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//释放空间
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imagedestroy($im);
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imagedestroy($goodImg);
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imagedestroy($codeImg);
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}
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/**
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* 从图片文件创建Image资源
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* @param $file 图片文件,支持url
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* @return bool|resource 成功返回图片image资源,失败返回false
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*/
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function createImageFromFile($file){
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if(preg_match('/http(s)?:///',$file)){
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$fileSuffix = getNetworkImgType($file);
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}else{
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$fileSuffix = pathinfo($file, PATHINFO_EXTENSION);
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}
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if(!$fileSuffix) return false;
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switch ($fileSuffix){
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case 'jpeg':
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$theImage = @imagecreatefromjpeg($file);
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break;
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case 'jpg':
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$theImage = @imagecreatefromjpeg($file);
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break;
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case 'png':
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$theImage = @imagecreatefrompng($file);
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break;
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case 'gif':
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$theImage = @imagecreatefromgif($file);
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break;
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default:
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$theImage = @imagecreatefromstring(file_get_contents($file));
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break;
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}
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return $theImage;
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}
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/**
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* 获取网络图片类型
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* @param $url 网络图片url,支持不带后缀名url
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* @return bool
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*/
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function getNetworkImgType($url){
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$ch = curl_init(); //初始化curl
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curl_setopt($ch, CURLOPT_URL, $url); //设置需要获取的URL
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curl_setopt($ch, CURLOPT_NOBODY, 1);
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 3);//设置超时
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curl_setopt($ch, CURLOPT_TIMEOUT, 3);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); //支持https
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curl_exec($ch);//执行curl会话
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$http_code = curl_getinfo($ch);//获取curl连接资源句柄信息
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curl_close($ch);//关闭资源连接
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if ($http_code['http_code'] == 200) {
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$theImgType = explode('/',$http_code['content_type']);
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if($theImgType[0] == 'image'){
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return $theImgType[1];
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}else{
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return false;
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}
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}else{
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return false;
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}
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}
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/**
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* 分行连续截取字符串
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* @param $str 需要截取的字符串,UTF-8
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* @param int $row 截取的行数
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* @param int $number 每行截取的字数,中文长度
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* @param bool $suffix 最后行是否添加‘...’后缀
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* @return array 返回数组共$row个元素,下标1到$row
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*/
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function cn_row_substr($str,$row = 1,$number = 10,$suffix = true){
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$result = array();
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for ($r=1;$r<=$row;$r++){
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$result[$r] = '';
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}
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$str = trim($str);
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if(!$str) return $result;
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$theStrlen = strlen($str);
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//每行实际字节长度
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$oneRowNum = $number * 3;
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for($r=1;$r<=$row;$r++){
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if($r == $row and $theStrlen > $r * $oneRowNum and $suffix){
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$result[$r] = mg_cn_substr($str,$oneRowNum-6,($r-1)* $oneRowNum).'...';
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}else{
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$result[$r] = mg_cn_substr($str,$oneRowNum,($r-1)* $oneRowNum);
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}
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if($theStrlen < $r * $oneRowNum) break;
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}
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return $result;
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}
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/**
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* 按字节截取utf-8字符串
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* 识别汉字全角符号,全角中文3个字节,半角英文1个字节
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* @param $str 需要切取的字符串
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* @param $len 截取长度[字节]
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* @param int $start 截取开始位置,默认0
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* @return string
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*/
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function mg_cn_substr($str,$len,$start = 0){
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$q_str = '';
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$q_strlen = ($start + $len)>strlen($str) ? strlen($str) : ($start + $len);
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//如果start不为起始位置,若起始位置为乱码就按照UTF-8编码获取新start
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if($start and json_encode(substr($str,$start,1)) === false){
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for($a=0;$a<3;$a++){
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$new_start = $start + $a;
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$m_str = substr($str,$new_start,3);
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if(json_encode($m_str) !== false) {
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$start = $new_start;
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break;
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}
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}
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}
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//切取内容
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for($i=$start;$i<$q_strlen;$i++){
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//ord()函数取得substr()的第一个字符的ASCII码,如果大于0xa0的话则是中文字符
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if(ord(substr($str,$i,1))>0xa0){
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$q_str .= substr($str,$i,3);
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$i+=2;
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}else{
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$q_str .= substr($str,$i,1);
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}
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}
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return $q_str;
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}
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//使用方法-------------------------------------------------
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//数据格式,如没有优惠券coupon_price值为0。
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$gData = [
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'pic' => 'code_png/nv_img.jpg',
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'title' =>'chic韩版工装羽绒棉服女冬中长款2017新款棉袄大毛领收腰棉衣外套',
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'price' => 19.8,
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'original_price' => 119.8,
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'coupon_price' => 100
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];
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//直接输出
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createSharePng($gData,'code_png/php_code.jpg');
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//输出到图片
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createSharePng($gData,'code_png/php_code.jpg','share.png');
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转载地址:https://blog.csdn.net/u012569217/article/details/79075374
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