PHP makes sharing pictures function

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