wp_after_insert_post( int|WP_Post $post, bool $update, null|WP_Post $post_before )

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Parameters

$postint|WP_Post

The post ID or object that has been saved.

$updatebool

Whether this is an existing post being updated.

$post_beforenull|WP_Post

Null for new posts, the WP_Post object prior to the update for updated posts.

Performance profile

How much work a call to wp_after_insert_post() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reaches the database via get_post().

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

9–17

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 18.

Plugin surface

1 hook

Third-party callbacks on 'wp_after_insert_post' run inside this call, and their cost is not bounded by anything here.

Called by

12

12 places in core call this, so the cost is paid more often than your own code shows.

What it touches

• querycontent queryget_post()called directly
• hookthird-party callbacksdo_action()called directly

Further down the call graph this can also reach option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 2 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_after_insert_post() can have, taken from its control-flow graph on PHP 8.5.

Hooks and filters fired · 1

One hook fires while wp_after_insert_post() runs, in this order:

1. 1
   do_action( wp_after_insert_post )actionline 5781 (+20 into the body)

   Fires once a post, its terms and meta data has been saved.

Uses · 2

• get_post()Retrieves post data given a post ID or post object.
• do_action()Calls the callback functions that have been added to an action hook.

Used by · 12

• WP_Customize_Manager::trash_changeset_post()Trashes or deletes a changeset post.
• WP_REST_Attachments_Controller::create_item()Creates a single attachment.
• WP_REST_Attachments_Controller::update_item()Updates a single attachment.
• WP_REST_Menu_Items_Controller::create_item()Creates a single nav menu item.
• WP_REST_Menu_Items_Controller::update_item()Updates a single nav menu item.
• WP_REST_Posts_Controller::create_item()Creates a single post.
• WP_REST_Posts_Controller::update_item()Updates a single post.
• WP_REST_Templates_Controller::create_item()Creates a single template.
• WP_REST_Templates_Controller::update_item()Updates a single template.
• get_default_post_to_edit()Returns default post information to use when populating the "Write Post" form.
• wp_insert_post()Inserts or update a post.
• wp_publish_post()Publishes a post by transitioning the post status.

Source code

View on Trac ↗View on GitHub ↗

5761function wp_after_insert_post( $post, $update, $post_before ) {5762	$post = get_post( $post );5763 5764	if ( ! $post ) {5765		return;5766	}5767 5768	$post_id = $post->ID;5769 5770	/**5771	 * Fires once a post, its terms and meta data has been saved.5772	 *5773	 * @since 5.6.05774	 *5775	 * @param int          $post_id     Post ID.5776	 * @param WP_Post      $post        Post object.5777	 * @param bool         $update      Whether this is an existing post being updated.5778	 * @param null|WP_Post $post_before Null for new posts, the WP_Post object prior5779	 *                                  to the update for updated posts.5780	 */5781	do_action( 'wp_after_insert_post', $post_id, $post, $update, $post_before );5782}

Changelog

Introduced in 5.6.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.7.7 tag, from src/wp-includes/post.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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