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WordPress

_wp_reset_invalid_menu_item_parent( array $menu_item_data ): array

Since
6.2.0
Source
wp-includes/nav-menu.php:1334
Prevents menu items from being their own parent.

Description

Resets menu_item_parent to 0 when the parent is set to the item itself.
For use before saving _menu_item_menu_item_parent in nav-menus.php.

Compatibility

WordPress
since 6.2.0
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

$menu_item_dataarray
The menu item data array.

Return value

array
The menu item data with reset menu_item_parent.

Performance profile

How much work a call to _wp_reset_invalid_menu_item_parent() 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
4–16

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 17.

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 one call costs · 1 distinct outcome

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

WhenInstructionsCalls it makes
always4–16none

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 17 instructions, 4–16 executed per call, 4 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.

Source code

View on Trac View on GitHub 

function _wp_reset_invalid_menu_item_parent( $menu_item_data ) {	if ( ! is_array( $menu_item_data ) ) {		return $menu_item_data;	} 	if (		! empty( $menu_item_data['ID'] ) &&		! empty( $menu_item_data['menu_item_parent'] ) &&		(int) $menu_item_data['ID'] === (int) $menu_item_data['menu_item_parent']	) {		$menu_item_data['menu_item_parent'] = 0;	} 	return $menu_item_data;}

Changelog

Introduced in 6.2.0. 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-includes/nav-menu.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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