wppaste
WordPress

WP_Style_Engine::get_url_or_value_css_declaration( array $style_value, array $style_definition ): string[]

Since
6.4.0
Source
wp-includes/style-engine/class-wp-style-engine.php:734
Style value parser that constructs a CSS definition array comprising a single CSS property and value.

Description

If the provided value is an array containing a url property, the function will return a CSS definition array with a single property and value, with url escaped and injected into a CSS url() function, e.g., array( 'background-image' => "url( '...' )" ).

Compatibility

WordPress
since 6.4.0
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

$style_valuearray
A single raw style value from $block_styles array.
$style_definitionarray
A single style definition from BLOCK_STYLE_DEFINITIONS_METADATA.

Return value

string[]
An associative array of CSS definitions, e.g., array( "$property" => "$value", "$property" => "$value" ).

Performance profile

How much work a call to WP_Style_Engine::get_url_or_value_css_declaration() 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
5–22

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 26.

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

WhenInstructionsCalls it makes
always5–22none

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 26 instructions, 5–22 executed per call, 5 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 

	protected static function get_url_or_value_css_declaration( $style_value, $style_definition ) {		if ( empty( $style_value ) ) {			return array();		} 		$css_declarations = array(); 		if ( isset( $style_definition['property_keys']['default'] ) ) {			$value = null; 			if ( ! empty( $style_value['url'] ) ) {				$value = "url('" . $style_value['url'] . "')";			} elseif ( is_string( $style_value ) ) {				$value = $style_value;			} 			if ( null !== $value ) {				$css_declarations[ $style_definition['property_keys']['default'] ] = $value;			}		} 		return $css_declarations;	}

Changelog

Introduced in 6.4.0. 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/style-engine/class-wp-style-engine.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.