[php多文件上传]php文件上传经典代码

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php文件上传经典代码

function FileUpload( $resourceType, $currentFolder, $sCommand )
{
 if (!isset($_FILES)) {
  global $_FILES;
 }
 $sErrorNumber = "0" ;
 $sFileName = "" ;

 if ( isset( $_FILES["NewFile"] ) && !is_null( $_FILES["NewFile"]["tmp_name"] ) )
 {
  global $Config ;

  $oFile = $_FILES["NewFile"] ;

  // Map the virtual path to the local server path.
  $sServerDir = ServerMapFolder( $resourceType, $currentFolder, $sCommand ) ;

  // Get the uploaded file name.
  $sFileName = $oFile["name"] ;
  $sFileName = SanitizeFileName( $sFileName ) ;

  $sOriginalFileName = $sFileName ;

  // Get the extension.
  $sExtension = substr( $sFileName, ( strrpos($sFileName, ".") + 1 ) ) ;
  $sExtension = strtolower( $sExtension ) ;

  if ( isset( $Config["SecureImageUploads"] ) )
  {
   if ( ( $isImageValid = IsImageValid( $oFile["tmp_name"], $sExtension ) ) === false )
   {
    $sErrorNumber = "202" ;
   }
  }

  if ( isset( $Config["HtmlExtensions"] ) )
  {
   if ( !IsHtmlExtension( $sExtension, $Config["HtmlExtensions"] ) &&
    ( $detectHtml = DetectHtml( $oFile["tmp_name"] ) ) === true )
   {
    $sErrorNumber = "202" ;
   }
  }

  // Check if it is an allowed extension.
  if ( !$sErrorNumber && IsAllowedExt( $sExtension, $resourceType ) )
  {
   $iCounter = 0 ;

   while ( true )
   {
    $sFilePath = $sServerDir . $sFileName ;

    if ( is_file( $sFilePath ) )
    {
     $iCounter++ ;
     $sFileName = RemoveExtension( $sOriginalFileName ) . "(" . $iCounter . ")." . $sExtension ;
     $sErrorNumber = "201" ;
    }
    else
    {
     move_uploaded_file( $oFile["tmp_name"], $sFilePath ) ;

     if ( is_file( $sFilePath ) )
     {
      if ( isset( $Config["ChmodOnUpload"] ) && !$Config["ChmodOnUpload"] )
      {
       break ;
      }

      $permissions = 0777;

      if ( isset( $Config["ChmodOnUpload"] ) && $Config["ChmodOnUpload"] )
      {
       $permissions = $Config["ChmodOnUpload"] ;
      }

      $oldumask = umask(0) ;
      chmod( $sFilePath, $permissions ) ;
      umask( $oldumask ) ;
     }

     break ;
    }
   }

   if ( file_exists( $sFilePath ) )
   {
    //previous checks failed, try once again
    if ( isset( $isImageValid ) && $isImageValid === -1 && IsImageValid( $sFilePath, $sExtension ) === false )
    {
     @unlink( $sFilePath ) ;
     $sErrorNumber = "202" ;
    }
    else if ( isset( $detectHtml ) && $detectHtml === -1 && DetectHtml( $sFilePath ) === true )
    {
     @unlink( $sFilePath ) ;
     $sErrorNumber = "202" ;
    }
   }
  }
  else
   $sErrorNumber = "202" ;
 }
 else
  $sErrorNumber = "202" ;

 $sFileUrl = CombinePaths( GetResourceTypePath( $resourceType, $sCommand ) , $currentFolder ) ;
 $sFileUrl = CombinePaths( $sFileUrl, $sFileName ) ;

 SendUploadResults( $sErrorNumber, $sFileUrl, $sFileName ) ;

 exit ;

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