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How do I find the ID of a new row added to a table?


If you are adding data to a mySQL table then you will often want to know the ID of a row you have just inserted so that you can reference it elsewhere. Often you'll add to a table with an auto_increment ID field and then want to use this to store other information on other tables.

Here's how you do it:

<?php
$q 
mysql_query("INSERT INTO mytable VALUES('test')");
$rownumber mysql_insert_id();
//$rownumber contains the id of the new row
?>



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