(PHP 5 >= 5.3.3, PHP 7) Sets the busy connection handler

(PHP 5, PHP 7) Opens a connection to a mysql server

(PHP 4 >= 4.0.6, PHP 5 <= 5.0.5, PECL dbx >= 1.1.0) Send a query and fetch all results (if any)

(PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 0.2.0) Set the default fetch mode for this statement

(PECL mongo >=0.9.4) Sets whether this cursor will be left open after fetching the last results

(PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 0.1.0) Fetches the next row from a result set

(PHP 5 < 5.4.0, PECL sqlite >= 1.0.0) Executes a query against a given database and returns a result handle

(PHP 5, PHP 7) Returns a string description for last statement error

(PHP 4, PHP <=5.2.0) Updates the content of the blob object

(PECL CUBRID >= 8.3.0) Move the result set cursor to the specified field offset