我想得到number_1
和number_2
并保存在meta_value
在表中wp_postmeta
. 我该怎么做呢?这个id_help_i
和$post-> ID
. 表的某些idwp_table_help_i
没有参数number_1
和number_2
那些没有的我想添加一个示例值99999
抱歉英语不好
function update_my_metadata() {
$args = array(
\'post_type\' => \'post\', // Only get the posts
\'post_status\' => \'publish\', // Only the posts that are published
\'posts_per_page\' => -1 // Get every post
);
$posts = get_posts($args);
foreach ($posts as $post) {
global $wpdb;
$meta_value = $wpdb->get_var($wpdb->prepare("SELECT Number_1 + Number_2 FROM wp_table_help_i WHERE id_help_i = \'$post->ID\'", $id));
// Run a loop and update every meta data
update_post_meta($post->ID, \'meta_key\', $meta_value);
}
}
// Hook into init action and run our function
add_action(\'init\', \'update_my_metadata\');