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WordPress

wp_update_term_count_now( array $terms, string $taxonomy ): true

Since
2.5.0
Source
wp-includes/taxonomy.php:3625
Performs term count update immediately.

Compatibility

WordPress
since 2.5.0
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

$termsarray
The term_taxonomy_id of terms to update.
$taxonomystring
The context of the term.

Return value

true
Always true when complete.

Performance profile

How much work a call to wp_update_term_count_now() 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_delete_multiple().

Scaling
Scales with input

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

Instructions
25–35

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 55.

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

  • hookthird-party callbacksapply_filters()one call below wp_update_term_count_now()
  • cacheobject cachewp_cache_delete_multiple()one call below wp_update_term_count_now()

Further down the call graph this can also reach option, query, 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 · 3 distinct outcomes

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

WhenInstructionsCalls it makes
!empty($taxonomy)25array_map(), get_taxonomy(), call_user_func(), clean_term_cache()
empty($taxonomy) && $object_types != false33–34array_map(), get_taxonomy(), array_filter(), _update_generic_term_count(), clean_term_cache()
empty($taxonomy) && $object_types == false34–35array_map(), get_taxonomy(), array_filter(), _update_post_term_count(), clean_term_cache()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev5525–355
8.55525–355
8.45525–3553 fewer instructions than PHP 8.3
8.35825–355
8.25825–355
8.15825–355
7.45825–355

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 · 5

Used by · 1

Source code

function wp_update_term_count_now( $terms, $taxonomy ) {	$terms = array_map( 'intval', $terms ); 	$taxonomy = get_taxonomy( $taxonomy );	if ( ! empty( $taxonomy->update_count_callback ) ) {		call_user_func( $taxonomy->update_count_callback, $terms, $taxonomy );	} else {		$object_types = (array) $taxonomy->object_type;		foreach ( $object_types as &$object_type ) {			if ( str_starts_with( $object_type, 'attachment:' ) ) {				list( $object_type ) = explode( ':', $object_type );			}		} 		if ( array_filter( $object_types, 'post_type_exists' ) == $object_types ) {			// Only post types are attached to this taxonomy.			_update_post_term_count( $terms, $taxonomy );		} else {			// Default count updater.			_update_generic_term_count( $terms, $taxonomy );		}	} 	clean_term_cache( $terms, '', false ); 	return true;}

Changelog

Introduced in 2.5.0. 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 7.1.0 tag, from src/wp-includes/taxonomy.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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