Руководство по PHP
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# fbsql_insert_id

(PHP 4 >= 4.0.6, PHP 5)

fbsql_insert_id -- Get the id generated from the previous INSERT operation

## Описание

int fbsql_insert_id ( [resource link_identifier] )

fbsql_insert_id() returns the ID generated for an column defined as DEFAULT UNIQUE by the previous INSERT query using the given link_identifier. If link_identifier isn't specified, the last opened link is assumed.

fbsql_insert_id() returns 0 if the previous query does not generate an DEFAULT UNIQUE value. If you need to save the value for later, be sure to call fbsql_insert_id() immediately after the query that generates the value.

> Замечание: The value of the FrontBase SQL function fbsql_insert_id() always contains the most recently generated DEFAULT UNIQUE value, and is not reset between queries.

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