twentytwenty_get_custom_logo( string $html ): string
- Since
- Twenty Twenty 1.0
- Source
wp-content/themes/twentytwenty/functions.php:312
Compatibility
- WordPress
- since Twenty Twenty 1.0
- 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
$htmlstring- The HTML output from get_custom_logo() (core function).
Return value
string- Custom logo HTML with "retina" resolution applied if enabled.
Performance profile
How much work a call to twentytwenty_get_custom_logo() 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
- Scaling
- Constant
- Instructions
- 7–62
- Plugin surface
- None
- Called by
- 0
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 69.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- hookthird-party callbacks
apply_filters()one call below twentytwenty_get_custom_logo()
Further down the call graph this can also reach option, cache, query, 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 · 4 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost twentytwenty_get_custom_logo() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 7 | get_theme_mod() |
| always | 13 | get_theme_mod(), wp_get_attachment_image_src() |
!get_theme_mod() | 30 | get_theme_mod(), wp_get_attachment_image_src(), esc_attr(), esc_attr(), get_theme_mod() |
get_theme_mod() | 61–62 | get_theme_mod(), wp_get_attachment_image_src(), esc_attr(), esc_attr(), get_theme_mod(), floor(), floor() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 69 | 7–62 | 4 | |
| 8.5 | 69 | 7–62 | 4 | |
| 8.4 | 69 | 7–62 | 4 | 6 fewer instructions than PHP 8.3 |
| 8.3 | 75 | 7–68 | 4 | |
| 8.2 | 75 | 7–68 | 4 | |
| 8.1 | 75 | 7–68 | 4 | |
| 7.4 | 75 | 7–68 | 4 |
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
- get_theme_mod()Retrieves theme modification value for the active theme.
- wp_get_attachment_image_src()Retrieves an image to represent an attachment.
- esc_attr()Escaping for HTML attributes.
Source code
function twentytwenty_get_custom_logo( $html ) { $logo_id = get_theme_mod( 'custom_logo' ); if ( ! $logo_id ) { return $html; } $logo = wp_get_attachment_image_src( $logo_id, 'full' ); if ( $logo ) { // For clarity. $logo_width = esc_attr( $logo[1] ); $logo_height = esc_attr( $logo[2] ); // If the retina logo setting is active, reduce the width/height by half. if ( get_theme_mod( 'retina_logo', false ) ) { $logo_width = floor( $logo_width / 2 ); $logo_height = floor( $logo_height / 2 ); $search = array( '/width=\"\d+\"/iU', '/height=\"\d+\"/iU', ); $replace = array( "width=\"{$logo_width}\"", "height=\"{$logo_height}\"", ); // Add a style attribute with the height, or append the height to the style attribute if the style attribute already exists. if ( false === strpos( $html, ' style=' ) ) { $search[] = '/(src=)/'; $replace[] = "style=\"height: {$logo_height}px;\" src="; } else { $search[] = '/(style="[^"]*)/'; $replace[] = "$1 height: {$logo_height}px;"; } $html = preg_replace( $search, $replace, $html ); } } return $html;}Changelog
Introduced in Twenty Twenty 1.0. Unchanged from 6.7.7 through 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/twentytwenty/functions.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.