block_has_support() │ WP 5.8.0

Checks whether the current block type supports the feature requested.

No Hooks.

Returns

true|false. Whether the feature is supported.

Usage

block_has_support( $block_type, $feature, $default_value );

$block_type(WP_Block_Type|null) (required)

Block type to check for support.

$feature(string|array) (required)

Feature slug, or path to a specific feature to check support for.

$default_value(mixed)

Fallback value for feature support.
Default: false

Changelog

block_has_support() block has support code ^{WP 7.0}

function block_has_support( $block_type, $feature, $default_value = false ) {
	$block_support = $default_value;
	if ( $block_type instanceof WP_Block_Type ) {
		if ( is_array( $feature ) && count( $feature ) === 1 ) {
			$feature = $feature[0];
		}

		if ( is_array( $feature ) ) {
			$block_support = _wp_array_get( $block_type->supports, $feature, $default_value );
		} elseif ( isset( $block_type->supports[ $feature ] ) ) {
			$block_support = $block_type->supports[ $feature ];
		}
	}

	return true === $block_support || is_array( $block_support );
}