wp_register_custom_classname_support

The timeline below displays how wordpress function wp_register_custom_classname_support has changed across different WordPress versions. If a version is not listed, refer to the next available version below.

WordPress Version: 6.4

/**
 * Custom classname block support flag.
 *
 * @package WordPress
 * @since 5.6.0
 */
/**
 * Registers the custom classname block attribute for block types that support it.
 *
 * @since 5.6.0
 * @access private
 *
 * @param WP_Block_Type $block_type Block Type.
 */
function wp_register_custom_classname_support($block_type)
{
    $has_custom_classname_support = block_has_support($block_type, 'customClassName', true);
    if ($has_custom_classname_support) {
        if (!$block_type->attributes) {
            $block_type->attributes = array();
        }
        if (!array_key_exists('className', $block_type->attributes)) {
            $block_type->attributes['className'] = array('type' => 'string');
        }
    }
}

WordPress Version: 5.8

/**
 * Custom classname block support flag.
 *
 * @package WordPress
 * @since 5.6.0
 */
/**
 * Registers the custom classname block attribute for block types that support it.
 *
 * @since 5.6.0
 * @access private
 *
 * @param WP_Block_Type $block_type Block Type.
 */
function wp_register_custom_classname_support($block_type)
{
    $has_custom_classname_support = block_has_support($block_type, array('customClassName'), true);
    if ($has_custom_classname_support) {
        if (!$block_type->attributes) {
            $block_type->attributes = array();
        }
        if (!array_key_exists('className', $block_type->attributes)) {
            $block_type->attributes['className'] = array('type' => 'string');
        }
    }
}

WordPress Version: 5.6

/**
 * Custom classname block support flag.
 *
 * @package WordPress
 */
/**
 * Registers the custom classname block attribute for block types that support it.
 *
 * @access private
 *
 * @param WP_Block_Type $block_type Block Type.
 */
function wp_register_custom_classname_support($block_type)
{
    $has_custom_classname_support = true;
    if (property_exists($block_type, 'supports')) {
        $has_custom_classname_support = _wp_array_get($block_type->supports, array('customClassName'), true);
    }
    if ($has_custom_classname_support) {
        if (!$block_type->attributes) {
            $block_type->attributes = array();
        }
        if (!array_key_exists('className', $block_type->attributes)) {
            $block_type->attributes['className'] = array('type' => 'string');
        }
    }
}