(PHP 5 >= 5.3.3, Bundled pdo_pgsql, PHP 7) Checks if inside a transaction

(PECL event >= 1.2.6-beta) Enters a required event method feature that the application demands

(PECL gearman >= 0.6.0) Get associated function name

(PHP 4, PHP 5, PHP 7, PECL OCI8 >= 1.0.0) Alias of

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Set miscellaneous runtime FTP options

(PECL newt >= 0.1) void newt_listbox_clear ( resource $listobx )

(PECL solr >= 0.9.2) Returns all the sort fields

(PHP >= 5.3.0, PECL phar >= 2.0.0) Copy a file internal to the phar archive to another new file within

(PHP 5 >= 5.3.0, PHP 7) Returns the number of columns in the result set

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Sets version number for a FDF file