In my custom post type, once the user saves the post, is there a way to check the value of one of the fields and update it? The value I will insert will depend on the post's ID so save_post
needs to be used in case it's a new post.
Yes you can have all of your data from $_POST
or global $post
after you save or update the post using save_post hook as you mentioned in your question
add_action( 'save_post', 'afterSavePost' );
function afterSavePost($pid)
{
$postId=$pid;
// or
global $post;
$postId=$post->ID;
$postTitle=$post->post_title;
// or
$postId=$_POST['ID'];
$postTitle=$_POST['post_title'];
}
You mentioned custom field
and in that case you can use
$yourCustomField=get_post_meta($postId, 'your_custom_field',true); // get a custom field
and
$yourCustomField="New value";
update_post_meta($postId, 'your_custom_field', $yourCustomField); // update a custom field
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.