PHP批量生成底部带编号二维码(二维码生成+文字生成图片+图片拼接合并)详解编程语言

    //生成二维码图片 
    public function makeCodeImg($url, $product_sn = '2018**82019') 
    {$path = 'upload/product_qr_code'; 
        if (!is_dir($path)) { 
            mkdir($path, 0777, true); 
        } 
        include_once 'phpqrcode/phpqrcode.php'; 
        $value = $url;                  //二维码内容 
        $errorCorrectionLevel = 'L';    //容错级别 
        $matrixPointSize = 12;           //生成图片大小 
 
        $filename = $path . '/' . $product_sn . '.jpg'; 
        QRcode::png($value, $filename, $errorCorrectionLevel, $matrixPointSize, 2); 
        $QR = $filename;                //已经生成的原始二维码图片文件 
        $QR = imagecreatefromstring(file_get_contents($QR)); 
        imagejpeg($QR, $product_sn . 'jpg'); 
    }

//文字生成图片 
    public function makeImgWithStr($filename, $text, $font_size=20,$font = 'font/Arial/Arial.ttf') 
    { 
        //图片尺寸 
        $im = imagecreatetruecolor(444, 70); 
        //背景色 
        $white = imagecolorallocate($im, 255, 255, 255); 
        //字体颜色 
        $black = imagecolorallocate($im, 0, 0, 0); 
 
        imagefilledrectangle($im, 0, 0, 444, 300, $white); 
        $txt_max_width = intval(0.8 * 444); 
        $content = ""; 
        for ($i = 0; $i < mb_strlen($text); $i++) { 
            $letter[] = mb_substr($text, $i, 1); 
        } 
        foreach ($letter as $l) { 
            $test_str = $content . " " . $l; 
            $test_box = imagettfbbox($font_size, 0, $font, $test_str); 
            // 判断拼接后的字符串是否超过预设的宽度。超出宽度添加换行 
            if (($test_box[2] > $txt_max_width) && ($content !== "")) { 
                $content .= "/n"; 
            } 
            $content .= $l; 
        } 
 
        $txt_width = $test_box[2] - $test_box[0]; 
 
        $y = 70 * 0.5; // 文字从何处的高度开始 
        $x = (444 - $txt_width) / 2; //文字居中 
        // echo $x;die; 
        //文字写入 
        imagettftext($im, $font_size, 0, $x, $y, $black, $font, $content); //写 TTF 文字到图中 
        //图片保存 
        imagejpeg($im, $filename); 
    }

　　/** 
* 合并图片,拼接合并 
* @param array $image_path 需要合成的图片数组 
* @param $save_path 合成后图片保存路径 
* @param string $axis 合成方向 
* @param string $save_type 合成后图片保存类型 
* @return bool|array 
*/ 
public function CompositeImage(array $image_path, $save_path, $axis = 'y', $save_type = 'png') 
{ 
if (count($image_path) < 2) { 
return false; 
} 
//定义一个图片对象数组 
$image_obj = []; 
//获取图片信息 
$width = 0; 
$height = 0; 
foreach ($image_path as $k => $v) { 
$pic_info = getimagesize($v); 
list($mime, $type) = explode('/', $pic_info['mime']); 
//获取宽高度 
$width += $pic_info[0]; 
$height += $pic_info[1]; 
if ($type == 'jpeg') { 
$image_obj[] = imagecreatefromjpeg($v); 
} elseif ($type == 'png') { 
$image_obj[] = imagecreatefrompng($v); 
} else { 
$image_obj[] = imagecreatefromgif($v); 
} 
} 
//按轴生成画布方向 
if ($axis == 'x') { 
//TODO X轴无缝合成时请保证所有图片高度相同 
$img = imageCreatetruecolor($width, imagesy($image_obj[0])); 
} else { 
//TODO Y轴无缝合成时请保证所有图片宽度相同 
$img = imageCreatetruecolor(imagesx($image_obj[0]), $height); 
} 
//创建画布颜色 
$color = imagecolorallocate($img, 255, 255, 255); 
imagefill($image_obj[0], 0, 0, $color); 
//创建画布 
imageColorTransparent($img, $color); 
imagecopyresampled($img, $image_obj[0], 0, 0, 0, 0, imagesx($image_obj[0]), imagesy($image_obj[0]), imagesx($image_obj[0]), imagesy($image_obj[0])); 
$yx = imagesx($image_obj[0]); 
$x = 0; 
$yy = imagesy($image_obj[0]); 
$y = 0; 
//循环生成图片 
for ($i = 1; $i <= count($image_obj) - 1; $i++) { 
if ($axis == 'x') { 
$x = $x + $yx; 
imagecopymerge($img, $image_obj[$i], $x, 0, 0, 0, imagesx($image_obj[$i]), imagesy($image_obj[$i]), 100); 
} else { 
$y = $y + $yy; 
imagecopymerge($img, $image_obj[$i], 0, $y, 0, 0, imagesx($image_obj[$i]), imagesy($image_obj[$i]), 100); 
} 
} 
//设置合成后图片保存类型 
if ($save_type == 'png') { 
imagepng($img, $save_path); 
} elseif ($save_type == 'jpg' || $save_type == 'jpeg') { 
imagejpeg($img, $save_path); 
} else { 
imagegif($img, $save_path); 
} 
return true; 
}

public function ImgCompress($src, $out_with = 150) 
{ 
// 获取图片基本信息 
list($width, $height, $type, $attr) = getimagesize($src); 
// 获取图片后缀名 
$pic_type = image_type_to_extension($type, false); 
// 拼接方法 
$imagecreatefrom = "imagecreatefrom" . $pic_type; 
// 打开传入的图片 
$in_pic = $imagecreatefrom($src); 
// 压缩后的图片长宽 
$new_width = $out_with; 
$new_height = $out_with / $width * $height; 
// 生成中间图片 
$temp = imagecreatetruecolor($new_width, $new_height); 
// 图片按比例合并在一起。 
imagecopyresampled($temp, $in_pic, 0, 0, 0, 0, $new_width, $new_height, $width, $height); 
// 销毁输入图片 
imagejpeg($temp, 'upload/merge' . time() . ".jpg"); 
imagedestroy($in_pic); 
return array($temp, $new_width, $new_height); 
}

//生成带编号说明的二维码 (生成二维码  文字生成图片 图片合并拼接) 
public function makeMergerImg($sn_product){ 
$this->makeCodeImg('dev2.lystrong.cn',$sn_product); 
$this->makeImgWithStr('upload/sn_str_img/'.$sn_product.'.jpg',$sn_product,30); 
$this->CompositeImage(['upload/product_qr_code/'.$sn_product.'.jpg','upload/sn_str_img/'.$sn_product.'.jpg'],'upload/pin_code/'.$sn_product.'.png'); 
unlink('upload/sn_str_img/'.$sn_product.'.jpg'); 
unlink('upload/product_qr_code/'.$sn_product.'.jpg'); 
}  
　　//生成压缩zip文件 $file_name 最终生成的文件名,包含路径   $file_list,用来生成file_name的文件数组 
　　public function makeZip($file_name, $file_list) 
{ 
if (file_exists($file_name)) { 
unlink($file_name); 
} 
//重新生成文件 
$zip = new ZipArchive(); 
if ($zip->open($file_name, ZIPARCHIVE::CREATE) !== TRUE) { 
exit('无法打开文件，或者文件创建失败'); 
} 
foreach ($file_list as $val) { 
if (file_exists($val)) { 
$zip->addFile($val); 
} 
} 
$zip->close();//关闭 
if (!file_exists($file_name)) { 
exit('无法找到文件'); //即使创建，仍有可能失败 
        } 
} 
　　//下载 
public function download($file){ 
if ( file_exists ( $file )) { 
header ( 'Content-Description: File Transfer' ); 
header ( 'Content-Type: application/octet-stream' ); 
header ( 'Content-Disposition: attachment; filename=' . basename ( $file )); 
header ( 'Content-Transfer-Encoding: binary' ); 
header ( 'Expires: 0' ); 
header ( 'Cache-Control: must-revalidate' ); 
header ( 'Pragma: public' ); 
header ( 'Content-Length: ' . filesize ( $file )); 
ob_clean (); 
flush (); 
readfile ( $file ); 
exit; 
} 
}

$product_str_start = 'cb05-00000155'; $product_str_end = 'cb05-00000160'; 
$press = explode('-',$product_str_start)[0]; 
$product_sn_start = explode('-',$product_str_start)[1]; 
$product_sn_end = explode('-',$product_str_end)[1]; 
$count = $product_sn_end - $product_sn_start; 
for ($i=0;$i<=$count;$i++){ 
$product_sn = $press.'-'.substr($product_sn_start+$i+1000000,1,7); 
$Img->makeMergerImg($product_sn); 
$img_arr[$i] = 'upload/pin_code/'.$product_sn.'.png'; 
} 
$Img->makeZip('upload/pin_code-0007.zip',$img_arr); 
$Img->download('upload/pin_code-0007.zip');