Navigates through an array, object, or scalar, and raw-encodes the values to be used in a URL.

Converts all accent characters to ASCII characters.

Strips out all characters that are not allowable in an email.

Sanitizes a filename, replacing whitespace with dashes.

Sanitizes a hex color.

Sanitizes a hex color without a hash. Use sanitize_hex_color() when possible.

Sanitizes an HTML classname to ensure it only contains valid characters.

Sanitizes a string key.

Sanitizes a mime type

Sanitizes various option values based on the nature of the option.