wppaste
WordPress

wp_load_core_site_options( int $network_id = null )

Since
3.0.0, 6.3.0, 6.6.0
Source
wp-includes/option.php:799
Loads and primes caches of certain often requested network options if is_multisite().

Compatibility

WordPress
since 6.6.0
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

$network_idintoptional
Network ID of network for which to prime network options cache. Defaults to current network.Default: null

Performance profile

How much work a call to wp_load_core_site_options() 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_get_multiple().

Scaling
Constant

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

Instructions
5–13

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 14.

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_get_multiple()one call below wp_load_core_site_options()
  • serializeserialisationmaybe_unserialize()one call below wp_load_core_site_options()

Further down the call graph this can also reach hook. That is 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_load_core_site_options() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
!is_multisite()5is_multisite()
is_multisite() && wp_installing()8is_multisite(), wp_installing()
is_multisite() && !wp_installing()13is_multisite(), wp_installing(), wp_prime_network_option_caches()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 14 instructions, 5–13 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.

Uses · 3

Source code

View on Trac View on GitHub 

function wp_load_core_site_options( $network_id = null ) {	if ( ! is_multisite() || wp_installing() ) {		return;	}	$core_options = array( 'site_name', 'siteurl', 'active_sitewide_plugins', '_site_transient_timeout_theme_roots', '_site_transient_theme_roots', 'site_admins', 'can_compress_scripts', 'global_terms_enabled', 'ms_files_rewriting', 'WPLANG' ); 	wp_prime_network_option_caches( $network_id, $core_options );}

Changelog

Introduced in 3.0.0. 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.

6.6.0
Uses wp_prime_network_option_caches().from the docblock
6.3.0
Also prime caches for network options when persistent object cache is enabled.from the docblock
3.0.0
Introduced.from the docblock

About this page

Parsed data
Generated from the wordpress-develop 7.0.4 tag, from src/wp-includes/option.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.