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:

  

复制代码 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

  

复制代码 代码如下:

  $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:

  

复制代码 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="<span style="font-size:18px;"><strong><span style="color:#FF0000;">注意提交的URL</span></strong></span>" 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>