(PHP 4, PHP 5, PHP 7) Returns number of affected rows

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

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

(PHP 4, PHP 5, PHP 7) Alias of

(PHP 4, PHP 5, PHP 7) Selects a Sybase database

(No version information available, might only be in Git) Closes an open connection and releases resourses associated

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

(PECL paradox >= 1.0.0) Closes a paradox database

(PECL mongo >=1.0.1) Log in to this database

(PHP 4 >= 4.3.0, PHP 5, PHP 7) List all open database files