WP_REST_Comments_Controller::create_item( WP_REST_Request $request ): WP_REST_Response|WP_Error

Compatibility

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

Parameters

$requestWP_REST_Request

Full details about the request.

Return value

WP_REST_Response|WP_Error

Response object on success, or error object on failure.

Performance profile

How much work a call to WP_REST_Comments_Controller::create_item() 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

Moderate

Reads stored settings via get_option(), cached per request but not free on a cold cache.

Scaling

Constant

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

Instructions

44–203

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 303.

Plugin surface

3 hooks

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

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• optionoption read or writeget_option()called directly
• hookthird-party callbacksapply_filters()called directly
• cacheobject cachewp_cache_get()one call below WP_REST_Comments_Controller::create_item()
• serializeserialisationmaybe_unserialize()one call below WP_REST_Comments_Controller::create_item()

Further down the call graph this can also reach query 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 · 30 distinct outcomes

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

This body has more branch combinations than are worth enumerating, so the table covers the outcomes found first rather than every one that exists.

Hooks and filters fired · 3

3 hooks fire while WP_REST_Comments_Controller::create_item() runs, in this order:

1. 1
   apply_filters( rest_pre_insert_comment )filterline 697 (+129 into the body)

   Filters a comment before it is inserted via the REST API.

2. 2
   do_action( rest_insert_comment )actionline 728 (+160 into the body)

   Fires after a comment is created or updated via the REST API.

3. 3
   do_action( rest_after_insert_comment )actionline 759 (+191 into the body)

   Fires completely after a comment is created or updated via the REST API.

Uses · 24

• __()Retrieves the translation of $text.
• is_wp_error()Checks whether the given variable is a WordPress Error.
• current_time()Retrieves the current time based on specified type.
• is_user_logged_in()Determines whether the current visitor is a logged in user.
• wp_get_current_user()Retrieves the current user object.
• get_option()Retrieves an option value based on an option name.
• wp_check_comment_data_max_lengths()Compares the lengths of comment data against the maximum character limits.
• wp_allow_comment()Validates whether this comment is allowed to be made.
• apply_filters()Calls the callback functions that have been added to a filter hook.
• wp_insert_comment()Inserts a comment into the database.
• wp_filter_comment()Filters and sanitizes comment data.
• wp_slash()Adds slashes to a string or recursively adds slashes to strings within an array.

Source code

View on Trac ↗View on GitHub ↗

568	public function create_item( $request ) {569		if ( ! empty( $request['id'] ) ) {570			return new WP_Error(571				'rest_comment_exists',572				__( 'Cannot create existing comment.' ),573				array( 'status' => 400 )574			);575		}576 577		// Do not allow comments to be created with a non-default type.578		if ( ! empty( $request['type'] ) && 'comment' !== $request['type'] ) {579			return new WP_Error(580				'rest_invalid_comment_type',581				__( 'Cannot create a comment with that type.' ),582				array( 'status' => 400 )583			);584		}585 586		$prepared_comment = $this->prepare_item_for_database( $request );587		if ( is_wp_error( $prepared_comment ) ) {588			return $prepared_comment;589		}590 591		$prepared_comment['comment_type'] = 'comment';592 593		if ( ! isset( $prepared_comment['comment_content'] ) ) {594			$prepared_comment['comment_content'] = '';595		}596 597		if ( ! $this->check_is_comment_content_allowed( $prepared_comment ) ) {598			return new WP_Error(599				'rest_comment_content_invalid',600				__( 'Invalid comment content.' ),601				array( 'status' => 400 )602			);603		}604 605		// Setting remaining values before wp_insert_comment so we can use wp_allow_comment().606		if ( ! isset( $prepared_comment['comment_date_gmt'] ) ) {607			$prepared_comment['comment_date_gmt'] = current_time( 'mysql', true );608		}609 610		// Set author data if the user's logged in.611		$missing_author = empty( $prepared_comment['user_id'] )612			&& empty( $prepared_comment['comment_author'] )613			&& empty( $prepared_comment['comment_author_email'] )614			&& empty( $prepared_comment['comment_author_url'] );615 616		if ( is_user_logged_in() && $missing_author ) {617			$user = wp_get_current_user();618 619			$prepared_comment['user_id']              = $user->ID;620			$prepared_comment['comment_author']       = $user->display_name;621			$prepared_comment['comment_author_email'] = $user->user_email;622			$prepared_comment['comment_author_url']   = $user->user_url;623		}624 625		// Honor the discussion setting that requires a name and email address of the comment author.626		if ( get_option( 'require_name_email' ) ) {627			if ( empty( $prepared_comment['comment_author'] ) || empty( $prepared_comment['comment_author_email'] ) ) {628				return new WP_Error(629					'rest_comment_author_data_required',630					__( 'Creating a comment requires valid author name and email values.' ),631					array( 'status' => 400 )632				);633			}634		}635 636		if ( ! isset( $prepared_comment['comment_author_email'] ) ) {637			$prepared_comment['comment_author_email'] = '';638		}639 640		if ( ! isset( $prepared_comment['comment_author_url'] ) ) {641			$prepared_comment['comment_author_url'] = '';642		}643 644		if ( ! isset( $prepared_comment['comment_agent'] ) ) {645			$prepared_comment['comment_agent'] = '';646		}647

Changelog

Introduced in 4.7.0. 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/rest-api/endpoints/class-wp-rest-comments-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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