php制作中间带自己定义图片的二维码

来源：互联网发布：apache ab测试工具编辑：程序博客网时间：2024/06/05 17:42

1，首先你必须生成二维码具体代码如下：

class QRCode{    public $w;    public $h;    public $s;    function __construct($w1,$h1,$s1){        $this->w = $w1;        $this->h = $h1;        $this->s = $s1;        $this->outimgase();    }    function qrcode(){          $post_data = array();          $post_data['cht'] = 'qr';          $post_data['chs'] = $this->w."x".$this->h;          $post_data['chl'] = $this->s;          $post_data['choe'] = "UTF-8";          $url = "http://chart.apis.google.com/chart";          $data_Array = array();          foreach($post_data as $key => $value)          {              $data_Array[] = $key.'='.$value;          }          $data = implode("&",$data_Array);          $ch = curl_init();          curl_setopt($ch, CURLOPT_POST, 1);          curl_setopt($ch, CURLOPT_HEADER, 0);          curl_setopt($ch, CURLOPT_URL, $url);              curl_setopt($ch, CURLOPT_POSTFIELDS,$data);          curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);          $result = curl_exec($ch);        curl_close($ch);        return $result;          }    function outimgase(){        echo $this->qrcode();        }}header("Content-type:image/png");$t = new QRCode(300,300,"tianxin");

2，然后通过一个php文件将二维码和你的目的图片画在一起代码如下：

<?php

$surl = $_POST["url"];function GrabImage($url,$filename="") {        if($url==""):return false;endif;        if($filename=="") {            $ext=strrchr($url,".");            if($ext!=".gif" && $ext!=".jpg"):return false;endif;            $filename=date("dMYHis").$ext;        }        ob_start();        readfile($url);        $img = ob_get_contents();        ob_end_clean();        $size = strlen($img);        $fp2=@fopen($filename, "a");        fwrite($fp2,$img);        fclose($fp2);        return $filename;    }$source = GrabImage("http://localhost/QRCode/QRCode.php","Myqrcode.png");$water =GrabImage($surl,"t.png");function getImageInfo($img){        $imageInfo = getimagesize($img);        if ($imageInfo !== false) {            $imageType = strtolower(substr(image_type_to_extension($imageInfo[2]), 1));            $imageSize = filesize($img);            $info = array(                "width" => $imageInfo[0],                "height" => $imageInfo[1],                "type" => $imageType,                "size" => $imageSize,                "mime" => $imageInfo['mime']            );            return $info;        } else {            return false;        }    }function thumb($image, $thumbname, $type='', $maxWidth=200, $maxHeight=50, $interlace=true) {        // 获取原图信息        $info = getImageInfo($image);        if ($info !== false) {            $srcWidth = $info['width'];            $srcHeight = $info['height'];            $type = empty($type) ? $info['type'] : $type;            $type = strtolower($type);            $interlace = $interlace ? 1 : 0;            unset($info);            $scale = min($maxWidth / $srcWidth, $maxHeight / $srcHeight); // 计算缩放比例            if ($scale >= 1) {                // 超过原图大小不再缩略                $width = $srcWidth;                $height = $srcHeight;            } else {                // 缩略图尺寸                $width = (int) ($srcWidth * $scale);                $height = (int) ($srcHeight * $scale);            }            // 载入原图            $createFun = 'ImageCreateFrom' . ($type == 'jpg' ? 'jpeg' : $type);            $srcImg = $createFun($image);            //创建缩略图            if ($type != 'gif' && function_exists('imagecreatetruecolor'))                $thumbImg = imagecreatetruecolor($width, $height);            else                $thumbImg = imagecreate($width, $height);            // 复制图片            if (function_exists("ImageCopyResampled"))                imagecopyresampled($thumbImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight);            else                imagecopyresized($thumbImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight);            if ('gif' == $type || 'png' == $type) {                //imagealphablending($thumbImg, false);//取消默认的混色模式                //imagesavealpha($thumbImg,true);//设定保存完整的 alpha 通道信息                $background_color = imagecolorallocate($thumbImg, 0, 255, 0);  //  指派一个绿色                imagecolortransparent($thumbImg, $background_color);  //  设置为透明色，若注释掉该行则输出绿色的图            }            // 对jpeg图形设置隔行扫描            if ('jpg' == $type || 'jpeg' == $type)                imageinterlace($thumbImg, $interlace);            // 生成图片            $imageFun = 'image' . ($type == 'jpg' ? 'jpeg' : $type);            $imageFun($thumbImg, $thumbname);            imagedestroy($thumbImg);            imagedestroy($srcImg);            return $thumbname;        }        return false;    }function water($source, $thumb, $savename="", $alpha=100){        //检查文件是否存在        if (!file_exists($source) || !file_exists($thumb))            return false;            //图片信息        $sInfo = getImageInfo($source);          $water = thumb($thumb,"wy.jpg","jpg",$sInfo["width"]/4,$sInfo["height"]/4);        $wInfo = getImageInfo($water);        //如果图片小于水印图片，不生成图片        if ($sInfo["width"] < $wInfo["width"] || $sInfo['height'] < $wInfo['height'])            return false;        //建立图像        $sCreateFun = "imagecreatefrom" . $sInfo['type'];        $sImage = $sCreateFun($source);        $wCreateFun = "imagecreatefrom" . $wInfo['type'];        $wImage = $wCreateFun($water);        //设定图像的混色模式        imagealphablending($wImage, true);        //图像位置,默认为右下角右对齐        //  $posY = $sInfo["height"] - $wInfo["height"];        //  $posX = $sInfo["width"] - $wInfo["width"];        $posY = ($sInfo["height"] - $wInfo["height"])/2;        $posX = ($sInfo["width"] - $wInfo["width"])/2;        //生成混合图像        imagecopymerge($sImage, $wImage, $posX, $posY, 0, 0, $wInfo['width'], $wInfo['height'], $alpha);        //输出图像        $ImageFun = 'Image' . $sInfo['type'];        //如果没有给出保存文件名，默认为原图像名        if (!$savename) {            $savename = $source;            @unlink($source);        }        //保存图像        $ImageFun($sImage, $savename);        imagedestroy($sImage);    }water($source,$water);

在上面的代码中用3个函数 GrabImage（）函数是将生成二维码的文件转化成图片接下来的函数就是处理图片的缩放将目的图片添加到二位上。

3，在来一个入口文件index.html 代码如下：

<html>    <head>        <title>            中间可以自己定义图片的二维码生成器        </title>    </head>    <body  style="margin:0px; padding:0px; font-family:宋体; font-size:12px;">    <form action="注意提交的URL" method="post">        <div style="width:500px; height:200px; background-color:#CCCCCC; margin:auto; border-width:1px; border-color:#000000;"  align="center">            <h1 style="margin:0px; padding:20px; font-family:宋体; font-size:12px;">中间可以自己定义图片的二维码生成器</h1>            <table width="500" border="0">              <tr>                <td width="250" height="40" align="center" valign="middle">二维码要生的内容：</td>                <td width="250" height="40" align="center" valign="middle">                  <label>                    <input type="text" name="content" value="">                  </label>                </td>              </tr>              <tr>                <td width="250" height="40" align="center" valign="middle">希望能添加自己的图片地址：</td>                <td width="250" height="40" align="center" valign="middle">                  <label>                    <input type="text" name="url" value="">                  </label>            </td>              </tr>              <tr>                <td height="40" colspan="2" align="center" valign="middle">                  <label>                    <input type="submit" name="Submit" value="生成我想要的二维码">                  </label>                </td>              </tr>          </table>        </div>    </body></html>

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