Hi List,

I have a qty posted via a form field, lets say 46.

In my mysql table I have two rows which I want to reduce their qty fields.

1 row has a qty of say 13 and the second has a qty of 50, making 63 in
total.

So I would like to say something like if $_POST[qty] is greater than row 1's
qty then update row[qty] = 0, then minus what was the row qty, 13 , from
$_POST[qty] to new var say $newqty = $_POST[qty]-$row[qty], this leaves 37.

Then from the 2nd row take 37 from its qty of 50 leaving 13. End result
being row 1's qty field = 0 and row 2's qty field = 13.

I hope this is not as clear as mud and if you need further clarity to be
able to advise me then I will be happy to correspond.

I thank you fully in advance for any help, logic pointers or nuggets of
wisdom.

Dave Carrera


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