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_update_generic_term_count( int[] $terms, WP_Taxonomy $taxonomy )

Since
3.3.0
Source
wp-includes/taxonomy.php:4207
Updates term count based on number of objects.

Description

Default callback for the 'link_category' taxonomy.

Compatibility

WordPress
since 3.3.0
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

$termsint[]
List of term taxonomy IDs.
$taxonomyWP_Taxonomy
Current taxonomy object of terms.

Performance profile

How much work a call to _update_generic_term_count() 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
Light

Touches nothing outside its own arguments.

Scaling
Scales with input

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

Instructions
7–8

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 46.

Plugin surface
2 hooks

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

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 callbacksdo_action()called directly

What one call costs · 1 distinct outcome

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

WhenInstructionsCalls it makes
always7–8none

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 46 instructions, 7–8 executed per call, 2 branches. The work does not change between versions.

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.

Hooks and filters fired · 2

2 hooks fire while _update_generic_term_count() runs, in this order:

  1. do_action( edit_term_taxonomy )actionline 4214 (+7 into the body)

    Fires immediate before a term-taxonomy relationship is updated.

  2. do_action( edited_term_taxonomy )actionline 4218 (+11 into the body)

    Fires immediately after a term-taxonomy relationship is updated.

Uses · 1

  • do_action()Calls the callback functions that have been added to an action hook.

Used by · 1

Source code

function _update_generic_term_count( $terms, $taxonomy ) {	global $wpdb; 	foreach ( (array) $terms as $term ) {		$count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $term ) ); 		/** This action is documented in wp-includes/taxonomy.php */		do_action( 'edit_term_taxonomy', $term, $taxonomy->name );		$wpdb->update( $wpdb->term_taxonomy, compact( 'count' ), array( 'term_taxonomy_id' => $term ) ); 		/** This action is documented in wp-includes/taxonomy.php */		do_action( 'edited_term_taxonomy', $term, $taxonomy->name );	}}

Changelog

Introduced in 3.3.0. 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 6.8.8 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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