Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Insert record into MySQL and get auto_increment back out again in same PHP file

Posted on 2004-10-05
7
Medium Priority
?
4,219 Views
Last Modified: 2013-12-12
I have a form which adds records to 2 separate tables, the second keeps track of updates that are done to the first.  In the first, the primary key is just an auto_increment integer, but int he second, I need to specify that number so that the update is assocated with the right record in the first table.  So after the record is inserted into the first table, how can I get that auto_increment value back out for that record?  I could just use the highest number in that column, but that wouldn't necessarially be correct.

can anybody help at all?
0
Comment
Question by:y2k1981
  • 3
  • 2
  • 2
7 Comments
 
LVL 27

Accepted Solution

by:
Diablo84 earned 500 total points
ID: 12228116
you need the mysql_insert_id function

http://www.php.net/manual/en/function.mysql-insert-id.php
0
 
LVL 14

Expert Comment

by:ThG
ID: 12228195
Anyway using the highest numberi n that column would necessarily be correct, as auto_increment works by taking highest value and incremeting it by 1. It would be an ugly solution :-)
0
 

Author Comment

by:y2k1981
ID: 12228263
Anyway using the highest numberi n that column would necessarily be correct, as auto_increment works by taking highest value and incremeting it by 1. It would be an ugly solution :-)


yes I know, that's why I don't want to use it !!!!!

To Diablo88 - that sounds like what I'm after, but how does it know which field to read the "id" from?
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 27

Expert Comment

by:Diablo84
ID: 12228288
It gets the ID from the most recently updated auto increment field in the last insert query.

0
 

Author Comment

by:y2k1981
ID: 12228342
cool, i'll have a go
0
 
LVL 14

Expert Comment

by:ThG
ID: 12228749
> To Diablo88 - that sounds like what I'm after, but how does it know which field to read the "id" from?

there can be only one auto_increment field.
0
 

Author Comment

by:y2k1981
ID: 12235226
ThG, thanks for the feedback, but at the time I didn't realise that it took the value from the auto_incremented field.

And thanks to Diablo84 also for providing the solution
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

3 proven steps to speed up Magento powered sites. The article focus is on optimizing time to first byte (TTFB), full page caching and configuring server for optimal performance.
The title says it all. Writing any type of PHP Application or API code that provides high throughput, while under a heavy load, seems to be an arcane art form (Black Magic). This article aims to provide some general guidelines for producing this typ…
Learn how to match and substitute tagged data using PHP regular expressions. Demonstrated on Windows 7, but also applies to other operating systems. Demonstrated technique applies to PHP (all versions) and Firefox, but very similar techniques will w…
The viewer will learn how to count occurrences of each item in an array.
Suggested Courses

581 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question