filter_block_kses()

filter_block_kses() — Filters and sanitizes a parsed block to remove non-allowable HTML from block attribute values.

Inputs: $block (WP_Block_Parser_Block): The parsed block object. $allowed_html (array[]|string): 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. $allowed_protocols (string[]): Optional. Array of allowed URL protocols. Defaults to the result of wp_allowed_protocols().

Returns array: The filtered and sanitized block object result.