WP_Duotone::is_preset( string|string[] $duotone_attr ): bool
- Since
- 6.3.0
- Source
wp-includes/class-wp-duotone.php:575
Description
Valid presets are defined in the $global_styles_presets array.
Compatibility
- WordPress
- since 6.3.0
- 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
$duotone_attrstring|string[]- The duotone attribute from a block.
Return value
bool- True if the duotone preset present and valid.
Performance profile
How much work a call to WP_Duotone::is_preset() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 4–15
- Plugin surface
- None
- Called by
- 1
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 16.
Nothing here hands control to plugin code.
1 place in core call this, so the cost is paid more often than your own code shows.
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Duotone::is_preset() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!is_string($duotone_attr) | 4 | none |
is_string($duotone_attr) | 15 | ::get_slug_from_attribute(), ::get_filter_id(), ::get_all_global_styles_presets() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 16 instructions, 4–15 executed per call, 1 branch. The work does not change between versions.
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Uses · 3
- WP_Duotone::get_slug_from_attribute()Takes the inline CSS duotone variable from a block and return the slug.
- WP_Duotone::get_filter_id()Get the ID of the duotone filter.
- WP_Duotone::get_all_global_styles_presets()Scrape all possible duotone presets from global and theme styles and store them in self::$global_styles_presets.
Used by · 1
- WP_Duotone::render_duotone_support()Render out the duotone CSS styles and SVG.
Source code
private static function is_preset( $duotone_attr ) { if ( ! is_string( $duotone_attr ) ) { return false; } $slug = self::get_slug_from_attribute( $duotone_attr ); $filter_id = self::get_filter_id( $slug ); return array_key_exists( $filter_id, self::get_all_global_styles_presets() ); }Changelog
Introduced in 6.3.0. 3 changes between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$duotone_attr retyped from string to string|string[].verified against sourcenone to bool.verified against sourcebool to none.verified against sourceAbout this page
- Parsed data
- Generated from the wordpress-develop 7.1.0 tag, from
src/wp-includes/class-wp-duotone.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.