(PHP 5, PHP 7) Return the string representation of the current element

(PHP 5 >= 5.3.0, PHP 7) Activates the circular reference collector

(PHP 4, PHP 5, PHP 7) Turn implicit flush on/off

(PHP 4, PHP 5, PHP 7) Close an ODBC connection

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Set bit void

(PECL fann >= 1.0.0) Trains on an entire dataset, for a period of time using the Cascade2 training algorithm

(PHP 4, PHP 5, PHP 7) Create a new image from file or URL

(PHP 4, PHP 5, PHP 7) Gets the key size of the specified cipher

(PHP 5, PHP 7) Decodes multiple MIME header fields at once

(PECL paradox >= 1.0.0) Stores record into paradox database