wppaste
WordPress

_make_email_clickable_cb( array $matches ): string

Since
2.3.2
Source
wp-includes/formatting.php:3020
Callback to convert email address match to HTML A element.

Description

This function was backported from 2.5.0 to 2.3.2. Regex callback for make_clickable().

Compatibility

WordPress
since 2.3.2
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

$matchesarray
Single Regex Match.

Return value

string
HTML A element with email address.

Performance profile

How much work a call to _make_email_clickable_cb() 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
13

Executed per call on PHP 8.5. The body compiles to 13.

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

WhenInstructionsCalls it makes
always13none

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 13 instructions, 13 executed per call, 0 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 _make_email_clickable_cb( $matches ) {	$email = $matches[2] . '@' . $matches[3]; 	return $matches[1] . "<a href=\"mailto:{$email}\">{$email}</a>";}

Changelog

Introduced in 2.3.2. 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 6.8.8 tag, from src/wp-includes/formatting.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
Something wrong on this page? Report it and it gets fixed in the next regeneration.