Resolved negative result question

[durangod]

Hi,

so im taking a value of current val and subtracting a cost value like this

PHP Code:


$updatecred = $mem_curcred - $featurecost; 


I do check the avail credits before hand but i was thinking what if the user waits awhile and just lets the page sit there then finishes, it could by pass my number of cred avail check.

So what i want to do is just verify before i post in the db that this result of $updatecred is NOT a neg number.

I know this sounds soo noobish but i really dont know. Do i just check for < 0 or if i use intval will that make sure it is not < 0

Which is best, if it is < 0 i just want it to be 0.

thanks

[mlseim]

Yes, Just make it zero ...

if($updatecred < 0){
$updatecred=0;
}

[durangod]

thanks thats how i had it just wanted to be sure lol.. thanks so much