php update MYSQL problem

[matt121400]

so i have a php page update that adds 1 to the tally like this

mysql_query("update table set entry1 = entry1 + '1' where user = '$user'");

The problem is it is being used SO quickly so often that it seems it is missing alot of updates. What would be a better way of doing this that guarantees each update is counted?

[guido2004]

It isn't the answer to your question, but I'd eliminate the single quotes around '1'

Can you explain the situation a bit more? Why is this query executed so often? And why do you think a lot of updates are lost?

[Shrapnel_N5]

Database doesn't miss any update sent.
How do you know there are missing updates?

[matt121400]

i am using it to manage users but it is being sent to a separate place that itself includes a count, and it is higher

[matt121400]

also this is being updated upto 500 times a second is that enough for it to possibly miss an update or possibly grab the old entry1 before the new 1 is added in

[guido2004]

also this is being updated upto 500 times a second is that enough for it to possibly miss an update or possibly grab the old entry1 before the new 1 is added in

Grab the old entry1, no.
Maybe the request might time out, if too many requests are in the queue. But that should give you an error, I think ?