Function: Sanitizes content for allowed HTML tags for post content.

Function: Navigates through an array, object, or scalar, and sanitizes content for allowed HTML tags for post content.

Function: Strips all HTML from a text string.

Function: Adds all KSES input form content filters.

Function: Removes all KSES input form content filters.

Function: Converts and fixes HTML entities.

Function: Callback for `wp_kses_normalize_entities()` regular expression.

Function: Determines if a Unicode codepoint is valid.