I am trying to test the status of a value passed to a PHP program as a
POST parameter, specifically a SUMBIT button, thus:
if (empty($_POST['button'])) {....
Now, I know that the parameter is not empty because if I put a debug
print line before it then it will print out the value of the parameter
and the conditional test comes up as false, which it should, thus:
print $_POST['button'].'<br>';
if (empty($_POST['button'])) {....
but if I don't have the preceding print statement (which is only in
there as a debug) then the conditional test comes up as true and the
logic branches off in the wrong direction.
BTW, it's PHP 4.2.2 called by Apache 2.0 on a 2.4.20 kernel.
As I say, really weird, and even weirder is that I have another program
with identical logic in this same way that behaves fine.
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