Question

When i insert into table, how can i get the unique id of that table row without doing another query by selecting last inserted element.

lets say i do something like this:

$query = mysql_query("INSERT INTO `user_table` SET user_email='efwwe', user_pw='fwefwef'; ");

now i want to get the user_id from that last insertion. Is it possible to get this from the php $query variable? Or do i really need to do another query where i select the last row from user_table? user_id would be the unique id that is incremented automaticly in this case

regards,
alexander

Answer 1

you’re looking for the mysql_insert_id() function.

ex:

mysql_query("INSERT INTO mytable (product) values ('kossu')");
printf("Last inserted record has id %d\n", mysql_insert_id());