(PHP 7) Check whether the code point is defined

(PHP 7) Check if code point is a lowercase letter

(PHP 7) Check if code point is a base character

(PHP 7) Get bidirectional category value for a code point

(PHP 7) Check if code point is punctuation character

(PHP 7) Check if code point is permissible in a Java identifier

(PHP 7) Check if code point is a "blank" or "horizontal space" character

(PHP 7) Get the numeric value for a Unicode code point

(PHP 7) Check if code point is an alphanumeric character

(PHP 7) Get the value for a Unicode property for a code point