(PECL ibm_db2 >= 1.0.0) Returns the number of fields contained in a result set

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Reads an entire large object and send straight to browser

(PHP 4, PHP 5, PHP 7) Open persistent Sybase connection

(PHP 5, PHP 7) Resets a prepared statement bool

(PECL mongo >=1.5.0) Gets information about the cursor's creation and iteration

(PECL mongo >=0.9.6) Checks if there are results that have not yet been sent from the database

(PHP 4, PHP <=5.2.0) Open persistent Informix connection

(PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 0.1.0) Rolls back a transaction

(PECL ibm_db2 >= 1.0.0) Executes an SQL statement directly

(PHP 4, PHP 5, PHP 7) Optimize database bool