如何创建只读afc字段

Question

我是PHP和wordpress的新人 我创建了自定义字段＆＃34; Field1＆＃34;
我希望只有在创建帖子时才有可能编辑此文件 我该怎么做？

Answer 1

也许不是最优雅的方式，但是，嘿，行得通！

/**
*    Prevents a field from being updated from the panel in ACF.
*    Useful for business-critical fields that must only be updated internally, but still need to be visible on the admin panel.
*/
add_filter('acf/update_value/key=YOUR_FIELD_KEY/NAME', function($value, $post_id, $field) {
        $backtraces = debug_backtrace();
        foreach ($backtraces as $backtrace) {
            if ( ! empty($backtrace['function']) && $backtrace['function'] == 'update_field') {
                return $value;
            }
        }
        return get_field('YOUR_FIELD_KEY/NAME', $post_id, false);
}, 10, 3);