WordPress上传文件自动重命名

WordPress 上传文件默认是不改变文件名称的，可对中文文件名而言，某些系统、某些浏览器访问是会出现问题滴，那么怎样让 Wordpress 上传文件自动重命名呐？

以 wordpress 3.5.1 为例，打开“wp-admin/includes/file.php”文件，找到第 330 行左右这段代码：

// Move the file to the uploads dir
$new_file = $uploads['path'] . "/$filename";
if ( false === @ move_uploaded_file( $file['tmp_name'], $new_file ) )
    return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $uploads['path'] ) );

改为：

// Move the file to the uploads dir
$new_file = $uploads['path'] . "/".date("YmdHis").floor(microtime()*1000).".".$ext;
if ( false === @ move_uploaded_file( $file['tmp_name'], $new_file ) )
    		return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $uploads['path'] ) );

保存，重新上传文件。这样，新上传的文件，就会自动保存为“年月日时分秒+千位毫秒整数”的新文件名，并保存到相应的年月文件夹之下了。

如：“20130622162751444.jpg”

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