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WordPress

block_core_breadcrumbs_create_page_number_item( string $query_var = 'paged' ): array

Since
7.0.0
Source
wp-includes/blocks/breadcrumbs.php:233
Creates a "Page X" breadcrumb item for paginated views.

Compatibility

WordPress
since 7.0.0
PHP
7.4–8.6-dev
  • 6.7.7
  • 6.8.8
  • 6.9.7
  • 7.0.4
  • 7.1.0

Present in 2 of the 5 tracked releases, added in 7.0.0, and compiles on PHP 7.4 through 8.6-dev.

Parameters

$query_varstringoptional
Query variable to get current page number. Default 'paged'.Default: 'paged'

Return value

array
The "Page X" breadcrumb item data.

Performance profile

How much work a call to block_core_breadcrumbs_create_page_number_item() 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

Executed per call on PHP 8.5. The body compiles to 31.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
2

2 places in core call this, so the cost is paid more often than your own code shows.

What it touches

  • hookthird-party callbacksapply_filters()one call below block_core_breadcrumbs_create_page_number_item()

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 · 1 distinct outcome

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

WhenInstructionsCalls it makes
always19get_query_var(), __(), number_format_i18n(), sprintf()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 31 instructions, 19 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

Used by · 2

Source code

function block_core_breadcrumbs_create_page_number_item( $query_var = 'paged' ) {	$paged = (int) get_query_var( $query_var ); 	if ( 'cpage' === $query_var ) {		return array(			'label' => sprintf(				/* translators: %s: comment page number */				__( 'Comments Page %s' ),				number_format_i18n( $paged )			),		);	} 	return array(		'label' => sprintf(			/* translators: %s: page number */			__( 'Page %s' ),			number_format_i18n( $paged )		),	);}

Changelog

Introduced in 7.0.0. Unchanged from 7.0.4 through 7.1.0.

  1. 7.0.4
  2. 7.1.0

Signature, return type and hooks compared across 2 parsed releases.

About this page

Parsed data
Generated from the wordpress-develop 7.1.0 tag, from src/wp-includes/blocks/breadcrumbs.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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