在插入时返回MySQL时间戳

Question

When I perform an insert statement to a MySQL database in PHP, is there a way to return the auto-generated timestamp or do I need a separate call to the database to retrieve the data?

Edit: I forgot that MySQL doesn't use epoch dates. I decided to just use an autoincrementing integer and a stored procedure.

Answer 1

You need to make a separate request to get that information. You can only get the last insert ID of auto incremented tables when doing an INSERT.

Answer 2

Use a multi-statement query.

1. Select the current timestamp into a variable.
2. insert the row with the timestamp.
3. return (select) the variable to php.

Answer 3

As far as I know, it is possible for last inserted ID if the ID was set as AUTO_INCREMENT ed. But for timestamp, I'll advise you to create a stored procedure so you will only have single request on the database. Remember that connection into database is costly.

Answer 4

You can return a last inserted id after insert , like:

<?php
$sql=mysql_query("INSERT INTO <TABLE> VALUES (?,?)");
return mysql_insert_id();
?>