Re: Locking mysql tables with PHP
| From: | pete M | Date: | Tue, 25 Nov 2003 13:16:39 +0000 |
| Subject: | Re: Locking mysql tables with PHP | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-170872@lists.php.net to get a copy of this message | ||
On way to do it would be to create a table called flags and update the value in that
psuedo code
update flags set locked =1
get value to calculate
otheruesrs would check the page
select locked from flags
if NOT locked then do query
on the update page
update table set calculation = result
update flags set locked = null
hope it makes sense
pete
Tony Crockford wrote:
Hi bit confused! here's what I want to do: get a numeric value from a MySQL table, do a calculation, then on another PHPpage update the numeric value in the table. what I don't want is anyone else getting the same number from the table before I've updated it. what PHP would you use to do this? Sorry for what is probably a really basic question - I did look at the MySQL manual, but I'm not sure how exactly to issue an SQL query LOCK TABLES using PHP. TIA Tony