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# pg_last_oid

(PHP 4 >= 4.2.0, PHP 5)

pg_last_oid -- Returns the last object's oid

## Description

int pg_last_oid ( resource result )

pg_last_oid() is used to retrieve the oid assigned to an inserted tuple (record) if the result resource is used from the last command sent via pg_query() and was an SQL INSERT. Returns a positive integer if there was a valid oid. It returns `FALSE` if an error occurs or the last command sent via pg_query() was not an INSERT or INSERT is failed.

OID field became an optional field from PostgreSQL 7.2. When OID field is not defined in a table, programmer must use pg_result_status() to check if record is is inserted successfully or not.

> 注: This function used to be called pg_getlastoid().

See also pg_query() and pg_result_status()

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