(PHP >= 5.4.0, PECL intl >= 2.0.0) Checks if a given text contains any suspicious characters

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Returns an appropriately localized display name for script

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0) Get the error code from last operation

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get the destination converter type

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get minimal number of days the first week in a year or month can have

(PHP 7) Get the "mirror-image" character for a code point

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Create a timezone object from

(PHP 7) Check whether the code point is defined

(PHP 7) Get the decimal digit value of a code point for a given radix

(PHP 5.5.0, PHP 7, PECL >= 3.0.0a1) Get behavior for handling repeating wall time