wppaste
WordPress

twentynineteen_nav_menu_social_icons( string $item_output, WP_Post $item, int $depth, stdClass $args ): string

Source
wp-content/themes/twentynineteen/inc/icon-functions.php:49
Displays SVG icons in social links menu.

Compatibility

WordPress
core
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

$item_outputstring
The menu item's starting HTML output.
$itemWP_Post
Menu item data object.
$depthint
Depth of the menu. Used for padding.
$argsstdClass
An object of wp_nav_menu() arguments.

Return value

string
The menu item output with social icon.

Performance profile

How much work a call to twentynineteen_nav_menu_social_icons() 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
8–26

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 26.

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 · 3 distinct outcomes

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

WhenInstructionsCalls it makes
always8none
!empty($svg)22twentynineteen_get_social_link_svg()
empty($svg)26twentynineteen_get_social_link_svg(), twentynineteen_get_icon_svg()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev268–262
8.5268–262
8.4268–2623 fewer instructions than PHP 8.3
8.3298–292
8.2298–292
8.1298–292
7.4298–292

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

function twentynineteen_nav_menu_social_icons( $item_output, $item, $depth, $args ) {	// Change SVG icon inside social links menu if there is supported URL.	if ( 'social' === $args->theme_location ) {		$svg = twentynineteen_get_social_link_svg( $item->url, 32 );		if ( empty( $svg ) ) {			$svg = twentynineteen_get_icon_svg( 'link' );		}		$item_output = str_replace( $args->link_after, '</span>' . $svg, $item_output );	} 	return $item_output;}

Changelog

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-content/themes/twentynineteen/inc/icon-functions.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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