(PECL wincache >= 1.1.0) Deletes variables from the user cache

(PECL apd 0.2-0.4) Changes or sets the current debugging level

(PECL wincache >= 1.0.0) Retrieves information about files cached in the file cache

(PECL uopz >= 1.0.0) Redefine a constant void

(PHP 5, PHP 7) Sets a user-defined exception handler function

(PECL runkit >= 0.7.0) Similar to define(), but allows defining in class definitions as well

(PECL runkit >= 0.7.0) Dynamically removes the given method

(PECL apcu >= 5.0.0) Get total cache size

(PHP 4, PHP 5, PHP 7) Prints out the credits for PHP

(PECL bcompiler >= 0.4) Writes the start pos, and sig to the end of a exe type file