WordPress上传文件中文乱码(自动重命名)

// 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'] ) );

将其修改为

// Move the file to the uploads dir
$new_file = $uploads['path'] . "/".date_i18n("YmdHis").floor(microtime()*1000).".".$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'] ) );

function new_filename($filename) {
    $info = pathinfo($filename);
    $ext = empty($info['extension']) ? '' : '.' . $info['extension'];
    $name = basename($filename, $ext);
    return md5($name) . $ext;
}
 
add_filter('sanitize_file_name', 'new_filename', 10);

function new_filename($filename) {
    $info = pathinfo($filename);
    $ext = empty($info['extension']) ? '' : '.' . $info['extension'];
    $name = basename($filename, $ext);
    return substr(md5($name), 0, 15) . $ext;
}
 
add_filter('sanitize_file_name', 'new_filename', 10);