php制作中间带自己定义图片二维码的方法

1，首先你必须生成二维码具体代码如下：
<div class="codetitle"><a style="CURSOR: pointer" data="88665" class="copybut" id="copybut88665" onclick="doCopy('code88665')"> 代码如下:<div class="codebody" id="code88665">
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
<div class="codetitle"><a style="CURSOR: pointer" data="80379" class="copybut" id="copybut80379" onclick="doCopy('code80379')"> 代码如下:<div class="codebody" id="code80379">
$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,$srcImg,$width,$height,$srcWidth,$srcHeight);
else
imagecopyresized($thumbImg,$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,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,$posY,$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：
<div class="codetitle"><a style="CURSOR: pointer" data="58353" class="copybut" id="copybut58353" onclick="doCopy('code58353')"> 代码如下:<div class="codebody" id="code58353">




<body style="margin:0px; padding:0px; font-family:宋体; font-size:12px;">
<form action="<span style="font-size:18px;">

<span style="color:#FF0000;">注意提交的URL

（编辑：李大同）

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