ZipArchive 打包下载压缩包

用php的header()方式下载压缩包。

要点：1、不能在header导出压缩包前向浏览器输出内容，否则文件下载压缩包成功，打开的压缩包也会显示被破坏。

2、在压缩文件包的php代码前不可以有js脚本、meta的加载，否则解压会显示损坏。

 <?php
 if(isset($_POST['mac']))
 {
      // print_r($_POST);

      $mac = $_POST['mac'];
      $date = $_POST['date'];
      $version = $_POST['version'];

      $mac = preg_replace("/[:-]/","", $mac);
      $version = preg_replace("/\./","",$version);

     //获取文件列表
     function list_dir($dir){
             $result = array();
             if (is_dir($dir)){
                 $file_dir = scandir($dir);
                 foreach($file_dir as $file){
                     if ($file == '.' || $file == '..'){
                         continue;
                     }
                     elseif (is_dir($dir."/".$file)){
                         $result = array_merge($result, list_dir($dir."/".$file));
                     }
                     else{
                         array_push($result, $dir."/".$file);
                     }
                 }
             }
             return $result;
         }

     //获取列表
     $datalist=list_dir('./package');
     // print_r($datalist);
     // die();
     $filename = "JD_".$mac."_".$version."_".$date.".zip"; //最终生成的文件名（含路径）
     if(!file_exists($filename)){
          //重新生成文件
         $zip = new ZipArchive();//使用本类，linux需开启zlib，windows需取消php_zip.dll前的注释
         if ($zip->open($filename, ZIPARCHIVE::OVERWRITE)!==TRUE) {
             exit('无法打开文件，或者文件创建失败');
         }   

         foreach( $datalist as $val){
             if(file_exists($val)){   

                 $zip->addFile($val, basename($val));//第二个参数是放在压缩包中的文件名称，如果文件可能会有重复，就需要注意一下
             }
         }
         $zip->close();//关闭
     }   

     //即使创建，仍有可能失败。。。。
     if(!file_exists($filename)){
         exit("无法找到文件");
     }   

   header("Cache-Control: public");
   header("Content-Description: File Transfer");
   header('Content-disposition: attachment; filename='.basename($filename)); //文件名
   header("Content-Type: application/zip"); //zip格式的
   header("Content-Transfer-Encoding: binary"); //告诉浏览器，这是二进制文件
   header('Content-Length: '. filesize($filename)); //告诉浏览器，文件大小
   @readfile($filename);

 }

   // echo $lowmd5;
 ?>

 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
     <title>文件打包</title>
 <link rel='icon' href='favicon.ico' type='image/x-ico'/>
 <script src="extlib/jquery-1.11.1.min.js" type="text/javascript" charset="utf-8" ></script>
 <script src="extlib/bootstrap-3.3.0/dist/js/bootstrap.min.js" type="text/javascript" charset="utf-8"></script>
 <script src="extlib/bootstrapValidator.min.js" type="text/javascript" charset="utf-8" ></script>
 <!-- <scrip src="extlib/Angular.js" type="text/javascript" charset="utf-8"></script> -->
 <script src="http://cdn.bootcss.com/angular.js/1.2.15/angular.min.js"></script>
 <link rel="stylesheet" type="text/css" href="extlib/bootstrap-3.3.0/dist/css/bootstrap.min.css">

  <div style="width:50%;margin:10 auto">
  <!-- <div class="container"> -->
    <form  name="myForm" class="form-horizontal" method="post" action="filemd5.php" target="_self" ng-app="myApp" ng-controller="validateCtrl" novalidate>
        <div class="form-group">
            <label for="" class="col-sm-4 control-label">MAC地址:</label>
            <div class="col-sm-4">
            <input type="text" class="form-control"  name="mac" value="" ng-model="mac" placeholder="MAC地址"  ng-pattern="/^([A-Za-z0-9]{2}[:-]){5}([A-Za-z0-9]{2})$/" required>
            </div>

            <span ng-show="myForm.mac.$dirty && myForm.mac.$invalid && !myForm.mac.$error.required">mac地址格式错误</span>
            <span ng-show="myForm.mac.$error.required && myForm.mac.$dirty">该项为必填项</span>

        </div>
        <div class="form-group">
            <label for="" class="col-sm-4 control-label">日期:</label>
            <div class="col-sm-4">
            <input type="text" class="form-control" name="date" ng-model="date"  value="" ng-pattern="/^\d{8}$/" placeholder="日期" required>
            </div>
            <span ng-show="myForm.date.$dirty && myForm.date.$invalid && !myForm.date.$error.required" nowrap>日期格式不正确.YYYYMMDD</span>
            <span ng-show="myForm.date.$error.required && myForm.date.$dirty">该项为必填项</span>
        </div>

         <div class="form-group">
             <label for="" class="col-sm-4 control-label">版本号:</label>
             <div class="col-sm-4">
                 <input type="text" class="form-control" name="version" ng-model="version" value="" ng-pattern="/^V\d{1,2}.\d{1,2}.\d{1,2}$/" placeholder="版本号" required>
             </div>
             <span ng-show="myForm.version.$error.required && myForm.version.$dirty">该项为必填项</span>
             <span ng-show="myForm.version.$dirty && myForm.version.$invalid && !myForm.version.$error.required">版本号错误.V2.0.03</span>
         </div>

       <div class="form-group">
          <div class="col-sm-offset-4 col-sm-2">
           <button type="submit" class="btn btn-default" ng-disabled="myForm.$invalid">生成</button>
          </div>
         <div class="col-sm-3">
          <button type="reset" class="btn btn-default">重新填写</button>
         </div>

       </div>

   <?
     if($tag=="success")
     {
         echo "<div class='form-group'>";
         echo "<div id='download' class='col-sm-offset-8'>";
         echo "<a class=\"btn btn-info\" href=\"$filename\" role=\"button\" ng-show=\"menuState\" ng-click=\"toggleMenu()\">点击下载</a>";
         echo "</div>";
         echo "</div>";

     }

  ?>

    </form>
    <!-- </div> -->
  </div>
 <script type="text/javascript">
     var myApp = angular.module('myApp',[]);

     myApp.controller('validateCtrl',function($scope){

       $scope.menuState = true;

       $scope.toggleMenu=function(){

            $scope.menuState = false;

       }

     })

 </script>

 </body>
 </html>