PHP 파일 업로드 백엔드 처리 실용적인 팁 및 방법

//点击选择完成文件后，触发上传文件操作，将文件上传至服务器临时目录
 $('.upload-real-file').off().on('change', function(){
  if(!$(this).val()){
   return false;
  }
  var responseObjId = $(this).attr('response-id');
  var responseObj = $('#' + responseObjId);
  $('#Form').ajaxSubmit({
   url:'/aa/bb/uploadTmpApkTool',
   resetForm: false,
   dataType: 'json',
   beforeSubmit: function(option){
    window.loading = layer.load(2);
   },
   success: function(data, statusText){
    layer.close(window.loading);
    if(data.status == 1){
     responseObj.html(data.apkInfoHtml);
     var parentContainer = responseObj.parent().parent(),
      nameContainer = parentContainer.find('.file-name-container');
     nameContainer.html(data.apkName);
     nameContainer.attr('title', data.apkName);
     responseObj.find('.file-tmp').html(data.fileInfo); //将文件信息存放于隐藏域中，以便在提交时能找到 
     $(submitId).removeAttr('disabled');
    }else{
     layer.alert(data.info);
    }
   },
   error: function(data){
    layer.close(window.loading);
    layer.alert('未知错误，请稍后再试！');
   }
  });
  return false;//防止dialog 自动关闭
 });

$apkConfig = $this->_getApkConfig();
 $params = $this->getFilteredParam('get');
 $subFile = $_FILES['apkToolFiles'];
 $apkName = $apkInfoHtml = "";
 if(empty($subFile))
 {
  $this->ajaxReturn(array('status' => -4, 'info' => '请选择要上传的文件'));
 }
 
 foreach ($subFile['name'] as $subKey => $subVal)
 {
  if ($subFile['name'][$subKey])
  {
   $fileData = $this->_getFileData($subFile, $subKey);
   $checkData = array(
    'maxSize' => $apkConfig['FILE_MAX_SIZE'],
    'savePath' => $apkConfig['TMP_CHILD_PATH'],
    'extArr' => array('apk'),
    'releaseName' => str_replace('.apk', '', $fileData['fileName']), //特有
   );
   $checkResult = $this->_checkFileData($fileData, $checkData);
   if ($checkResult['status'] != 1)
   {
    $this->ajaxReturn($checkResult);
   }
   //移动文件
   $filePath = $checkData['savePath'] . '/' . $fileData['fileName'] . '.tmp' . genRandStr(6);;
   $this->_moveUploadedFile($fileData['tmpName'], $filePath);
   $apkInfo = $this->_apkParser($filePath); //解析
   if($apkInfo['UMENG_CHANNEL'] != 'UMENG_CHANNEL_VALUE')
   {
    @unlink($filePath);        //删除无效文件
    $this->ajaxReturn(array('status' => 0, 'info' => "UMENG_CHANNEL的值要是 UMENG_CHANNEL_VALUE才行"));
   }
   $tmpFileArr['file_info'] = array(
    'name' => $subFile['name'][$subKey],
    'type' => $subFile['type'][$subKey],
    'tmp_name' => str_replace($apkConfig['TMP_CHILD_PATH'] . '/', '', $filePath),
    'error' => $subFile['error'][$subKey],
    'size' => $subFile['size'][$subKey],
   );    //转存该值，不再重复上传文件
  }
  else
  {
   $this->ajaxReturn(array('status' => 0, 'info' => "文件不能为空"));
  }
  foreach ($apkInfo as $key => $val)
  {
   $apkInfoHtml .= "{$key}:{$val} \r\n";
  }
  $apkName = $fileData['fileName'];
  $version = $apkInfo['versionName'];
 }
 $fileInfo = htmlspecialchars(json_encode($tmpFileArr['file_info']));
 $fileInfoHtml = "<input name=\"apkToolFileTmp[]\" value=&#39;{$fileInfo}&#39; type=\"hidden\"/>"; //一定要输出前使用htmlspecialchars, 否则不能正确显示页面值和获取至正确的文件信息
 
 $this->ajaxReturn(array(&#39;status&#39; => 1, &#39;info&#39; => "上传成功", &#39;version&#39; => $version, &#39;item&#39; => $item, &#39;apkName&#39; => $apkName, &#39;apkInfoHtml&#39; => $apkInfoHtml, &#39;fileInfo&#39; => $fileInfoHtml));
}

$('.upload-file-real').attr('disabled', 'disabled');  //提交表单前，禁用上传文件