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Translations::select_plural_form( int $count ): int

Since
2.8.0
Source
wp-includes/pomo/translations.php:172
Given the number of items, returns the 0-based index of the plural form to use

Description

Here, in the base Translations class, the common logic for English is implemented: 0 if there is one element, 1 otherwise

This function should be overridden by the subclasses. For example MO/PO can derive the logic from their headers.

Compatibility

WordPress
since 2.8.0
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

$countint
Number of items.

Return value

int
Plural form to use.

Performance profile

How much work a call to Translations::select_plural_form() 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
5

Executed per call on PHP 8.5. The body compiles to 6.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
1

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

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

WhenInstructionsCalls it makes
always5none

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 6 instructions, 5 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.

Used by · 1

Source code

View on Trac View on GitHub 

		public function select_plural_form( $count ) {			return 1 === (int) $count ? 0 : 1;		}

Changelog

Introduced in 2.8.0. 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/pomo/translations.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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