PHP3 V PHP4

Hi all

Anyone know why $count == $count++ works fine in php3 but not in php4 ?

in php3 the value of $coutn goes up by 1 each time the script is called (desired effect) but in php4 it does nothing !

Any help would be cool

Shouldn't that be:
$count = ++$count?

The whole statement is wrong.

The correct statement would be simply:

$count++;

++$count;

the "==" statement is a comparison statement as used in IF()

You could also use:
$count = $count + 1;

Gary,

Vincent is correct.

count=count+1;
OR
count++;

"count++" It is the shortened version of doing "count=count+1"

Either of the above syntax would work. Your original statement is a conusion of the two above and could have unpredictable results.

Also note that $count++ is a post-increment.

So if you used:

$count = 1;
echo $count++;

It would display 1, then add 1 to $count making it 2.

So if you want the value of the variable passed to the statement it's in and then incremented by 1, that's fine.

If not, you'd use ++$count.

So I think we've all covered every possible aspect of the subject, lol 😉

Allmost. 🙂

The only extra thing is that ++$counter is faster than $counter++
About 0.2 seconds for 1.000.000 operations.

That's about it :-)