You are here: Re: mysql_insert_id() is it not problematic? « PHP Programming Language « IT news, forums, messages
Re: mysql_insert_id() is it not problematic?

Posted by Gordon Burditt on 01/26/06 23:02

>I would like to insert a data (row) into database (MySQL) and than to
>generate file whose name contains the ID of the inserted row (ID is
>declared as AUTO_INCREMENT). I wanted to extract ID by
>mysql_insert_id() function.

This works, and it works *PER CONNECTION*.
It returns the last ID inserted *on this connection*.

>However, the problem is that my web site
>can visit many users and many of them can initiate the describe
>procedure. It can happen that between the first user inserts something
>into database and executes mysql_insert_id, the second user also insert
>something into database.

Fine.

>And in this way the mysql_insert_id initiated
>by the first user will return ID of insert-operation initiated by the
>second user.

No, that won't happen. mysql_insert_id() works *PER CONNECTION*.

>If it is possible, how one can avoid this problem?

It already is avoided.

Gordon L. Burditt

 

Navigation:

[Reply to this message]


Удаленная работа для программистов  •  Как заработать на Google AdSense  •  England, UK  •  статьи на английском  •  PHP MySQL CMS Apache Oscommerce  •  Online Business Knowledge Base  •  DVD MP3 AVI MP4 players codecs conversion help
Home  •  Search  •  Site Map  •  Set as Homepage  •  Add to Favourites

Copyright © 2005-2006 Powered by Custom PHP Programming

Сайт изготовлен в Студии Валентина Петручека
изготовление и поддержка веб-сайтов, разработка программного обеспечения, поисковая оптимизация