WordPress V3.9.2上传文件自动重命名文件名称和默认的年月保存目录的修改方法

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 3.9.0为例，打开“wp-admin/includes/file.php”文件，找到第313行和452行这段代码：

// Move the file to the uploads dir
    $new_file = $uploads['path'] . "/$filename";   //主要是修改这行的代码！
    if ( false === @ rename( $file['tmp_name'], $new_file ) ) {
        if ( 0 === strpos( $uploads['basedir'], ABSPATH ) )
            $error_path = str_replace( ABSPATH, '', $uploads['basedir'] ) . $uploads['subdir'];
        else
            $error_path = basename( $uploads['basedir'] ) . $uploads['subdir'];
        return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $error_path ) );
    }

将其修改为

    // Move the file to the uploads dir
    $new_file = $uploads['path'] . "/".date("YmdHis").floor(microtime()*1000).".".$ext;   //主要是修改这行的代码！
    if ( false === @ rename( $file['tmp_name'], $new_file ) ) {
        if ( 0 === strpos( $uploads['basedir'], ABSPATH ) )
            $error_path = str_replace( ABSPATH, '', $uploads['basedir'] ) . $uploads['subdir'];
        else
            $error_path = basename( $uploads['basedir'] ) . $uploads['subdir'];
        return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $error_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。 上传后保存的年-月文件夹修改方法： 1.后台设置---多媒体设置如下图： 2.以wordpress 3.9.2为例，打开“wp-includes/functions.php”文件，找到第1707行到1714行这段代码：

$subdir = '';
    if ( get_option( 'uploads_use_yearmonth_folders' ) ) {
        // Generate the yearly and monthly dirs
        if ( !$time )
            $time = current_time( 'mysql' );
        $y = substr( $time, 0, 4 );
        $m = substr( $time, 5, 2 );
        $subdir = "/$y/$m";   //修改这行代码 By：piaoyun.cc
    }

修改上面代码中的：

$subdir = "/$y/$m";

修改为：

$subdir = "/$y$m";

也就是删除$y和$m之间的 / 最终修改后的代码

    $subdir = '';
    if ( get_option( 'uploads_use_yearmonth_folders' ) ) {
        // Generate the yearly and monthly dirs
        if ( !$time )
            $time = current_time( 'mysql' );
        $y = substr( $time, 0, 4 );
        $m = substr( $time, 5, 2 );
        $subdir = "/$y$m";   //修改这行代码 By：piaoyun.cc
    }