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WordPress

wp_queue_posts_for_term_meta_lazyload( WP_Post[] $posts )

Since
4.5.0
Source
wp-includes/post.php:8168
Queues posts for lazy-loading of term meta.

Compatibility

WordPress
since 4.5.0
PHP
7.4–8.6-dev
  • 6.7.7
  • 6.8.8
  • 6.9.7
  • 7.0.4
  • 7.1.0

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

Parameters

$postsWP_Post[]
Array of WP_Post objects.

Performance profile

How much work a call to wp_queue_posts_for_term_meta_lazyload() 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

Only touches the object cache, via wp_cache_get_multiple().

Scaling
Scales with input

The body loops, so the work grows with what you pass in.

Instructions
11–19

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 77.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
1

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

What it touches

  • cacheobject cachewp_cache_get_multiple()called directly

Further down the call graph this can also reach query, hook, serialize, option 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_queue_posts_for_term_meta_lazyload() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
always11–12wp_lazyload_term_meta()
always17–19array_unique(), wp_lazyload_term_meta()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev7711–1916
8.57711–1916
8.47711–19162 fewer instructions than PHP 8.3
8.37911–1916
8.27911–1916
8.17911–1916
7.47911–1916

An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.

Uses · 3

Used by · 1

Source code

function wp_queue_posts_for_term_meta_lazyload( $posts ) {	$post_type_taxonomies = array();	$prime_post_terms     = array();	foreach ( $posts as $post ) {		if ( ! ( $post instanceof WP_Post ) ) {			continue;		} 		if ( ! isset( $post_type_taxonomies[ $post->post_type ] ) ) {			$post_type_taxonomies[ $post->post_type ] = get_object_taxonomies( $post->post_type );		} 		foreach ( $post_type_taxonomies[ $post->post_type ] as $taxonomy ) {			$prime_post_terms[ $taxonomy ][] = $post->ID;		}	} 	$term_ids = array();	if ( $prime_post_terms ) {		foreach ( $prime_post_terms as $taxonomy => $post_ids ) {			$cached_term_ids = wp_cache_get_multiple( $post_ids, "{$taxonomy}_relationships" );			if ( is_array( $cached_term_ids ) ) {				$cached_term_ids = array_filter( $cached_term_ids );				foreach ( $cached_term_ids as $_term_ids ) {					// Backward compatibility for if a plugin is putting objects into the cache, rather than IDs.					foreach ( $_term_ids as $term_id ) {						if ( is_numeric( $term_id ) ) {							$term_ids[] = (int) $term_id;						} elseif ( isset( $term_id->term_id ) ) {							$term_ids[] = (int) $term_id->term_id;						}					}				}			}		}		$term_ids = array_unique( $term_ids );	} 	wp_lazyload_term_meta( $term_ids );}

Changelog

Introduced in 4.5.0. 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-includes/post.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
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