(PECL mongo >=0.9.0) Advances the cursor to the next result, and returns that result

(PHP 5, PHP 7, PECL OCI8 >= 1.1.0) Frees the resources associated with the collection object

(PHP 4, PHP 5, PHP 7) Free resources associated with a result

(PHP 4, PHP 5 <= 5.1.6, PHP 7) Find out how many rows are in a filePro database

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Test if a field is SQL NULL

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

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Gets the backend's process ID

(PHP 5, PHP 7) Execute a previously prepared query

(PECL ingres >= 1.1.0) Execute a prepared query

(PHP 5 >= 5.6.0, PHP 7) Poll the status of an in-progress asynchronous PostgreSQL connection attempt.