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WP_Community_Events::get_events_transient_key( array $location ): string|false

Since
4.8.0
Source
wp-admin/includes/class-wp-community-events.php:312
Generates a transient key based on user location.

Description

This could be reduced to a one-liner in the calling functions, but it's intentionally a separate function because it's called from multiple functions, and having it abstracted keeps the logic consistent and DRY, which is less prone to errors.

Compatibility

WordPress
since 4.8.0
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

$locationarray
Should contain 'latitude' and 'longitude' indexes.

Return value

string|false
Transient key on success, false on failure.

Performance profile

How much work a call to WP_Community_Events::get_events_transient_key() 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
7–16

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 22.

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

WhenInstructionsCalls it makes
!isset($location)7–9none
isset($location)10–16md5()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 22 instructions, 7–16 executed per call, 3 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.

Used by · 2

Source code

View on Trac View on GitHub 

	protected function get_events_transient_key( $location ) {		$key = false; 		if ( isset( $location['ip'] ) ) {			$key = 'community-events-' . md5( $location['ip'] );		} elseif ( isset( $location['latitude'], $location['longitude'] ) ) {			$key = 'community-events-' . md5( $location['latitude'] . $location['longitude'] );		} 		return $key;	}

Changelog

Introduced in 4.8.0. 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-admin/includes/class-wp-community-events.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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