(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Remove a constraint from relation

(PHP 4, PHP 5, PHP 7) Closes a PostgreSQL connection

(PHP 5, PHP 7) Return an error code int ibase_errcode

(PHP 5 < 5.4.0) Return an array of column types from a particular table

(No version information available, might only be in Git) Retrieve records with multiple queries

(PECL tokyo_tyrant >= 0.1.0) Adds to a numeric key

(PECL mongo >= 1.0.8) Gets the hostname being used for this machine's ids

(No version information available, might only be in Git) Changes the driver error handling and logging configurations

(PHP 4, PHP 5, PHP 7) Packs a database bool dbase_pack

(PECL mongo >=0.9.0) Stores a file in the database