Description
int mysql_insert_id ([int
link_identifier])
mysql_insert_id() returns the ID generated for
an AUTO_INCREMENT column by the previous INSERT query using the
given link_identifier. If
link_identifier isn't specified, the last
opened link is assumed.
mysql_insert_id() returns 0 if the previous
query does not generate an AUTO_INCREMENT value. If you need to
save the value for later, be sure to call mysql_insert_id()
immediately after the query that generates the value.
Note:
The value of the MySQL SQL function
LAST_INSERT_ID() always contains the most
recently generated AUTO_INCREMENT value, and is not reset
between queries.
| Warning |
mysql_insert_id() converts the return type of
the native MySQL C API function
mysql_insert_id() to a type of
long. If your AUTO_INCREMENT column has
a column type of BIGINT, the value returned by
mysql_insert_id() will be incorrect.
Instead, use the internal MySQL SQL function
LAST_INSERT_ID().
|
Manual: mysql_insert_id
