我相信其他人可以指出其他方法，但我只是在这里提出我认为最快的方法：使用Advanced Custom Fields PRO 以及他们的option pages functionality. 从他们的文档中：

if( function_exists(\'acf_add_options_page\') ) {

acf_add_options_page(array(
    \'page_title\'    => \'Theme General Settings\',
    \'menu_title\'    => \'Theme Settings\',
    \'menu_slug\'     => \'theme-general-settings\',
    \'capability\'    => \'edit_posts\',
    \'redirect\'      => false
));

acf_add_options_sub_page(array(
    \'page_title\'    => \'Theme Header Settings\',
    \'menu_title\'    => \'Header\',
    \'parent_slug\'   => \'theme-general-settings\',
));

acf_add_options_sub_page(array(
    \'page_title\'    => \'Theme Footer Settings\',
    \'menu_title\'    => \'Footer\',
    \'parent_slug\'   => \'theme-general-settings\',
));

}

$option_x = get_field(\'option_x\', \'options\');