wppaste
WordPress

refresh_user_details( int $id ): int|false

Since
3.0.0
Source
wp-admin/includes/ms.php:330
Cleans the user cache for a specific user.

Compatibility

WordPress
since 3.0.0
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

$idint
The user ID.

Return value

int|false
The ID of the refreshed user or false if the user does not exist.

Performance profile

How much work a call to refresh_user_details() 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
Heavy

Reaches the database via get_user_by().

Scaling
Constant

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

Instructions
9–12

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 13.

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

  • querycontent queryget_user_by()one call below refresh_user_details()
  • cacheobject cachewp_cache_delete()one call below refresh_user_details()
  • hookthird-party callbacksdo_action()one call below refresh_user_details()

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

WhenInstructionsCalls it makes
always9get_userdata()
always12get_userdata(), clean_user_cache()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 13 instructions, 9–12 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 refresh_user_details( $id ) {	$id = (int) $id; 	$user = get_userdata( $id );	if ( ! $user ) {		return false;	} 	clean_user_cache( $user ); 	return $id;}

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.

About this page

Parsed data
Generated from the wordpress-develop 7.1.0 tag, from src/wp-admin/includes/ms.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.