post_comment_meta_box( WP_Post $post )

Compatibility

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

Parameters

$postWP_Post

Current post object.

Performance profile

How much work a call to post_comment_meta_box() 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_comments().

Scaling

Constant

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

Instructions

41–53

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 60.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

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

What it touches

• querycontent queryget_comments()called directly
• hookthird-party callbacksapply_filters()one call below post_comment_meta_box()

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 post_comment_meta_box() can have, taken from its control-flow graph on PHP 8.5.

Uses · 8

• wp_nonce_field()Retrieves or display nonce hidden field for forms.
• _e()Displays translated text.
• get_comments()Retrieves a list of comments.
• _get_list_table()Fetches an instance of a WP_List_Table class.
• __()Retrieves the translation of $text.
• get_hidden_meta_boxes()Gets an array of IDs of hidden meta boxes.
• get_current_screen()Get the current screen object
• wp_comment_trashnotice()Outputs 'undo move to Trash' text for comments.

Source code

View on Trac ↗View on GitHub ↗

895function post_comment_meta_box( $post ) {896	wp_nonce_field( 'get-comments', 'add_comment_nonce', false );897	?>898	<p class="hide-if-no-js" id="add-new-comment"><button type="button" class="button" onclick="window.commentReply && commentReply.addcomment(<?php echo $post->ID; ?>);"><?php _e( 'Add Comment' ); ?></button></p>899	<?php900 901	$total         = get_comments(902		array(903			'post_id' => $post->ID,904			'count'   => true,905			'orderby' => 'none',906		)907	);908	$wp_list_table = _get_list_table( 'WP_Post_Comments_List_Table' );909	$wp_list_table->display( true );910 911	if ( 1 > $total ) {912		echo '<p id="no-comments">' . __( 'No comments yet.' ) . '</p>';913	} else {914		$hidden = get_hidden_meta_boxes( get_current_screen() );915		if ( ! in_array( 'commentsdiv', $hidden, true ) ) {916			?>917			<script>jQuery(function(){commentsBox.get(<?php echo $total; ?>, 10);});</script>918			<?php919		}920 921		?>922		<p class="hide-if-no-js" id="show-comments"><a href="#commentstatusdiv" onclick="commentsBox.load(<?php echo $total; ?>);return false;"><?php _e( 'Show comments' ); ?></a> <span class="spinner"></span></p>923		<?php924	}925 926	wp_comment_trashnotice();927}

Changelog

Introduced in 2.8.0. 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 7.0.4 tag, from src/wp-admin/includes/meta-boxes.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

Something wrong on this page? Report it and it gets fixed in the next regeneration.