_wp_add_block_level_presets_class( string $block_content, array $block ): string

Compatibility

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.

$blockarray

Block object.

Return value

string

Filtered block content.

Performance profile

How much work a call to _wp_add_block_level_presets_class() 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

4–40

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 43.

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 · 4 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost _wp_add_block_level_presets_class() can have, taken from its control-flow graph on PHP 8.5.

Uses · 5

• block_has_support()Checks whether the current block type supports the feature requested.
• _wp_get_presets_class_name()Get the class name used on block level presets.
• WP_Block_Type_Registry::get_instance()::get_registered()
• WP_Block_Type_Registry::get_instance()Utility method to retrieve the main instance of the class.
• WP_HTML_Tag_Processor::__construct()Constructor.

Source code

View on Trac ↗View on GitHub ↗

36function _wp_add_block_level_presets_class( $block_content, $block ) {37	if ( ! $block_content ) {38		return $block_content;39	}40 41	// return early if the block doesn't have support for settings.42	$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );43	if ( ! block_has_support( $block_type, '__experimentalSettings', false ) ) {44		return $block_content;45	}46 47	// return early if no settings are found on the block attributes.48	$block_settings = $block['attrs']['settings'] ?? null;49	if ( empty( $block_settings ) ) {50		return $block_content;51	}52 53	// Like the layout hook this assumes the hook only applies to blocks with a single wrapper.54	// Add the class name to the first element, presuming it's the wrapper, if it exists.55	$tags = new WP_HTML_Tag_Processor( $block_content );56	if ( $tags->next_tag() ) {57		$tags->add_class( _wp_get_presets_class_name( $block ) );58	}59 60	return $tags->get_updated_html();61}

Changelog

Introduced in 6.2.0. 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/block-supports/settings.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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