get_block_bindings_supported_attributes( string $block_type ): array

Compatibility

Present in 3 of the 5 tracked releases, added in 7.1.0, and compiles on PHP 7.4 through 8.6-dev.

Parameters

$block_typestring

The block type whose supported attributes are being retrieved.

Return value

array

The list of block attributes that are supported by block bindings.

Performance profile

How much work a call to get_block_bindings_supported_attributes() 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

18–21

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 22.

Plugin surface

2 hooks

Third-party callbacks on 'block_bindings_supported_attributes', 'block_bindings_supported_attributes_{$block_type}' run inside this call, and their cost is not bounded by anything here.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What it touches

• hookthird-party callbacksapply_filters()called directly

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

Hooks and filters fired · 2

2 hooks fire while get_block_bindings_supported_attributes() runs, in this order:

1. 1
   apply_filters( block_bindings_supported_attributes )filterline 167 (+25 into the body)

   Filters the supported block attributes for block bindings.

2. 2
   apply_filters( block_bindings_supported_attributes_{$block_type} )filterline 183 (+41 into the body)

   Filters the supported block attributes for block bindings.

Uses · 1

• apply_filters()Calls the callback functions that have been added to a filter hook.

Used by · 1

• get_block_editor_settings()Returns the contextualized block editor settings for a selected editor context.

Source code

View on Trac ↗View on GitHub ↗

142function get_block_bindings_supported_attributes( $block_type ) {143	$block_bindings_supported_attributes = array(144		'core/paragraph'          => array( 'content' ),145		'core/heading'            => array( 'content' ),146		'core/list-item'          => array( 'content' ),147		'core/image'              => array( 'id', 'url', 'title', 'alt', 'caption' ),148		'core/button'             => array( 'url', 'text', 'linkTarget', 'rel' ),149		'core/post-date'          => array( 'datetime' ),150		'core/navigation-link'    => array( 'url' ),151		'core/navigation-submenu' => array( 'url' ),152	);153 154	$supported_block_attributes =155		isset( $block_type, $block_bindings_supported_attributes[ $block_type ] ) ?156			$block_bindings_supported_attributes[ $block_type ] :157			array();158 159	/**160	 * Filters the supported block attributes for block bindings.161	 *162	 * @since 6.9.0163	 *164	 * @param string[] $supported_block_attributes The block's attributes that are supported by block bindings.165	 * @param string   $block_type                 The block type whose attributes are being filtered.166	 */167	$supported_block_attributes = apply_filters(168		'block_bindings_supported_attributes',169		$supported_block_attributes,170		$block_type171	);172 173	/**174	 * Filters the supported block attributes for block bindings.175	 *176	 * The dynamic portion of the hook name, `$block_type`, refers to the block type177	 * whose attributes are being filtered.178	 *179	 * @since 6.9.0180	 *181	 * @param string[] $supported_block_attributes The block's attributes that are supported by block bindings.182	 */183	$supported_block_attributes = apply_filters(184		"block_bindings_supported_attributes_{$block_type}",185		$supported_block_attributes186	);187 188	return $supported_block_attributes;189}

Changelog

Introduced in 6.9.0. Unchanged from 6.9.7 through 7.1.0.

1. 6.9.7
2. 7.0.4
3. 7.1.0

Signature, return type and hooks compared across 3 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.1.0 tag, from src/wp-includes/block-bindings.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

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