filter_block_kses_value example

function filter_block_kses( $block, $allowed_html, $allowed_protocols = array() ) {
    $block['attrs'] = filter_block_kses_value( $block['attrs'], $allowed_html, $allowed_protocols );

    if ( is_array( $block['innerBlocks'] ) ) {
        foreach ( $block['innerBlocks'] as $i => $inner_block ) {
            $block['innerBlocks'][ $i ] = filter_block_kses( $inner_block, $allowed_html, $allowed_protocols );
        }
    }

    return $block;
}

/** * Filters and sanitizes a parsed block attribute value to remove * non-allowable HTML. * * @since 5.3.1 * * @param string[]|string $value The attribute value to filter. * @param array[]|string $allowed_html An array of allowed HTML elements and attributes, * or a context name such as 'post'. See wp_kses_allowed_html() * for the list of accepted context names. * @param string[] $allowed_protocols Optional. Array of allowed URL protocols. * Defaults to the result of wp_allowed_protocols(). * @return string[]|string The filtered and sanitized result. */