Returns an array of allowed HTML tags and attributes for a given context.

Converts the keys of an array to lowercase.

Removes all attributes, if none are allowed for this element.

Determines whether an attribute is allowed.

Finds all attributes of an HTML element.

Sanitizes a string and removed disallowed URL protocols.

Sanitizes content from bad protocols and other characters.

Performs different checks for attribute values.

Sanitize content with allowed HTML KSES rules.

Converts all numeric HTML entities to their named counterparts.