(PHP 5 >= 5.3.0, PHP 7) Closes the database connection

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Get or set the database name used with a connection

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PECL OCI8 >= 1.0.0) Alias of

(PECL mongo >= 0.9.0) Checks if an array is a database reference

(PHP 5, PHP 7) Return the number of parameters in a prepared query

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Get a write lock on a tuple

(No version information available, might only be in Git) Retrieves metadata for the fields of a statement prepared

(PHP 5 >= 5.3.0, PHP 7) Returns the row ID of the most recent INSERT into the database

(PECL mongo >= 1.0.11) Gets the incremented value to create this id

(PECL mongo >=1.3.0) Gets an array of names for all collections in this database