wp_get_block_default_classname() │ WP 5.6.0

Gets the generated classname from a given block name.

Internal function — this function is designed to be used by the kernel itself. It is not recommended to use this function in your code.

Hooks from the function

block_default_classname

Returns

String. Generated classname.

Usage

wp_get_block_default_classname( $block_name );

$block_name(string) (required): Block Name.

Changelog

Since 5.6.0

Introduced.

`wp_get_block_default_classname() wp get block default classname` code ^{WP 6.9}

wp-includes/block-supports/generated-classname.php

function wp_get_block_default_classname( $block_name ) {
	// Generated HTML classes for blocks follow the `wp-block-{name}` nomenclature.
	// Blocks provided by WordPress drop the prefixes 'core/' or 'core-' (historically used in 'core-embed/').
	$classname = 'wp-block-' . preg_replace(
		'/^core-/',
		'',
		str_replace( '/', '-', $block_name )
	);

	/**
	 * Filters the default block className for server rendered blocks.
	 *
	 * @since 5.6.0
	 *
	 * @param string $class_name The current applied classname.
	 * @param string $block_name The block name.
	 */
	$classname = apply_filters( 'block_default_classname', $classname, $block_name );

	return $classname;
}