block_default_classname │ filter-hook │ WP 5.6.0

Filters the default block className for server rendered blocks.

Usage

add_filter( 'block_default_classname', 'wp_kama_block_default_classname_filter', 10, 2 );

/**
 * Function for `block_default_classname` filter-hook.
 * 
 * @param string $class_name The current applied classname.
 * @param string $block_name The block name.
 *
 * @return string
 */
function wp_kama_block_default_classname_filter( $class_name, $block_name ){

	// filter...
	return $class_name;
}

$class_name(string)

The current applied classname.

$block_name(string)

The block name.

Changelog

Where the hook is called

$classname = apply_filters( 'block_default_classname', $classname, $block_name );

Where the hook is used in WordPress