wppaste
WordPress

clean_site_details_cache( int $site_id = 0 )

Since
4.7.4
Source
wp-includes/ms-blogs.php:330
Cleans the site details cache for a site.

Compatibility

WordPress
since 4.7.4
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

$site_idintoptional
Site ID. Default is the current site ID.Default: 0

Performance profile

How much work a call to clean_site_details_cache() 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

Only touches the object cache, via wp_cache_delete().

Scaling
Constant

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

Instructions
13–16

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 16.

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

  • cacheobject cachewp_cache_delete()called directly

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

WhenInstructionsCalls it makes
always13wp_cache_delete(), wp_cache_delete()
always16get_current_blog_id(), wp_cache_delete(), wp_cache_delete()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 16 instructions, 13–16 executed per call, 1 branch. 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.

Uses · 2

Source code

View on Trac View on GitHub 

function clean_site_details_cache( $site_id = 0 ) {	$site_id = (int) $site_id;	if ( ! $site_id ) {		$site_id = get_current_blog_id();	} 	wp_cache_delete( $site_id, 'site-details' );	wp_cache_delete( $site_id, 'blog-details' );}

Changelog

Introduced in 4.7.4. 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/ms-blogs.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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