使用纯JQuery和PHP5的多文件上传器？

Question

我需要一个由纯jQuery/Javascript和php5创建的多文件上传器。不使用任何Flash文件。如果任何机构有代码，请与我分享。我尝试使用File API，但不支持IE和Opera。

Answer 1

您可以使用blueimp jQuery File Upload为客户端上传多个文件。有很多选择，可定制。

对于PHP方面，您可能对某些想法有兴趣了解一些关于如何操作的想法（只是我的图片上传表单的一些代码片段，所以有些变量在这里没有像$ log或$ confImages那样定义，但是您可以得到这个想法）：

  //Сheck that we have a file 
      if (empty($uploaded_image)) 
      return false; 
     if ($uploaded_image['error']) { 
      $log->LogError($uploaded_image['error'] . ": Error uploading file."); 
      return false; 
     } 

     list($dirname, $basename, $extension, $filename) = array_values(pathinfo($uploaded_image['name'])); //Extract variables: dirname, basename, extension, filename 
     //Normalize file name. I may suggest using http://cubiq.org/the-perfect-php-clean-url-generator than this 
     $filename = iconv("utf-8","ascii//TRANSLIT",$filename); 
      $allowedExt = array("jpg","jpeg","gif","png"); 
     $extension = strtolower($extension); 

     //Check if the image has allowed type 
     if (empty($extension) || !in_array($extension, $allowedExt)) { 
      $log->LogError("invalid_extension: Not allowed to upload file ".(empty($extension) ? "without extension" : "with extension $extension").". Allowed Extensions: ". implode(",",$allowedExt)); 
      return false; 
     } 

      //Generate some random string in case if such file exists on server 
     $postfix = substr(md5(uniqid(rand(),1)), 3, 5); 
     $newFile = $_SERVER['DOCUMENT_ROOT'].$upload_folder."/".$filename.'_'.$postfix.'.'.$extension; //new filename with appended random string to original filename); 

     //Check if the file with the same name is already exists on the server 
     if (file_exists($newFile)) { 
      $log->LogError("file_exists: File couldn't be uploaded, because such filename exist ".basename($newFile)." jau eksistē"); 
     } 

     //Attempt to move the uploaded file to it's new place 
     if (move_uploaded_file($uploaded_image['tmp_name'],$newFile)) { 
      //I do some resizing also using http://phpthumb.gxdlabs.com/ 
      $convertedimage = PhpThumbFactory::create($newFile, array("jpegQuality" => 80)); 
      if (isset($confImages["max_width"]) || isset($confImages["max_height"])) 
       $convertedimage->resize($confImages["max_width"], $confImages["max_height"]); 
      $convertedimage->save($newFile); 

      //Save image path to database 
      ... 

      return $image; 
     } else { 
      $log->LogError("Couldn't copy file from temp folder " . $uploaded_image['tmp_name'] . " to location " . $newFile); 
     }  

     return false;