wppaste
WordPress

wp_update_plugin( $plugin, $feedback = '' )

Since
2.5.0
Source
wp-admin/includes/deprecated.php:1185
This was once used to kick-off the Plugin Updater.

Description

Deprecated in favor of instantiating a Plugin_Upgrader instance directly, and calling the 'upgrade' method.
Unused since 2.8.0.

Compatibility

Deprecated in WordPress 3.7.0. Use Plugin_Upgrader

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

$plugin
$feedbackoptional
Default: ''

Performance profile

How much work a call to wp_update_plugin() 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
Trivial

Touches nothing outside its own arguments.

Scaling
Constant

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

Instructions
19–23

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 23.

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

  • hookthird-party callbacksdo_action()one call below wp_update_plugin()

Further down the call graph this can also reach query, option, cache, 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 · 2 distinct outcomes

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

WhenInstructionsCalls it makes
empty($feedback)19_deprecated_function(), ->upgrade()
!empty($feedback)23_deprecated_function(), add_filter(), ->upgrade()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 23 instructions, 19–23 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 · 3

  • _deprecated_function()Marks a function as deprecated and inform when it has been used.
  • add_filter()Adds a callback function to a filter hook.
  • Plugin_Upgrader::__construct()

Source code

View on Trac View on GitHub 

function wp_update_plugin($plugin, $feedback = '') {	_deprecated_function( __FUNCTION__, '3.7.0', 'new Plugin_Upgrader();' ); 	if ( !empty($feedback) )		add_filter('update_feedback', $feedback); 	require ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';	$upgrader = new Plugin_Upgrader();	return $upgrader->upgrade($plugin);}

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.

3.7.0
Deprecated. Use Plugin_Upgraderfrom the docblock
2.5.0
Introduced.from the docblock

About this page

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