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WordPress

WP_Duotone::restore_image_outer_container( string $block_content ): string

Since
6.6.0
Source
wp-includes/class-wp-duotone.php:1177
Fixes the issue with our generated class name not being added to the block's outer container in classic themes due to gutenberg_restore_image_outer_container from layout block supports.

Compatibility

WordPress
since 6.6.0
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

$block_contentstring
Rendered block content.

Return value

string
Filtered block content.

Performance profile

How much work a call to WP_Duotone::restore_image_outer_container() 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
Light

Touches nothing outside its own arguments.

Scaling
Scales with input

The body loops, so the work grows with what you pass in.

Instructions
5–37

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 39.

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 it touches

  • hookthird-party callbacksapply_filters()one call below WP_Duotone::restore_image_outer_container()

Further down the call graph this can also reach option, cache, serialize, transient and query. 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 WP_Duotone::restore_image_outer_container() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
wp_theme_has_theme_json()5wp_theme_has_theme_json()
!wp_theme_has_theme_json() && !->next_tag()14wp_theme_has_theme_json(), ->next_tag()
!wp_theme_has_theme_json() && ->next_tag()25–26wp_theme_has_theme_json(), ->next_tag(), ->set_bookmark(), ->next_tag(), ->class_list(), ->get_updated_html()
!wp_theme_has_theme_json() && ->next_tag() && !->class_list() && $classname37wp_theme_has_theme_json(), ->next_tag(), ->set_bookmark(), ->next_tag(), ->class_list(), ->remove_class(), ->seek(), ->add_class(), ->get_updated_html()

Across PHP versions

PHPCompiledExecutedBranchesNotes
8.6-dev395–375
8.5395–375
8.4395–3753 fewer instructions than PHP 8.3
8.3425–405
8.2425–405
8.1425–405
7.4425–405

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

Source code

	public static function restore_image_outer_container( $block_content ) {		if ( wp_theme_has_theme_json() ) {			return $block_content;		} 		$tags          = new WP_HTML_Tag_Processor( $block_content );		$wrapper_query = array(			'tag_name'   => 'div',			'class_name' => 'wp-block-image',		);		if ( ! $tags->next_tag( $wrapper_query ) ) {			return $block_content;		} 		$tags->set_bookmark( 'wrapper-div' );		$tags->next_tag(); 		foreach ( $tags->class_list() as $classname ) {			if ( str_starts_with( $classname, 'wp-duotone' ) ) {				$tags->remove_class( $classname );				$tags->seek( 'wrapper-div' );				$tags->add_class( $classname );				break;			}		} 		return $tags->get_updated_html();	}

Changelog

Introduced in 6.6.0. 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/class-wp-duotone.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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