is there difference...

Anon

...between '$i++' and '++$i' ?

if there is what is that difference? something important? :-)

cordex

Not a huge difference, but there is some.

Try this:

$i=5;
echo $i++ ."<BR>";
$i=5;
echo ++$i . "<BR>";

You'll see that the first one shows $i as 5 and the second one shows $i as 6. That's because placing ++ before the variable increments it before it is used in that position. Placing ++ after the variable increments it after it is used in that location.

Make sense?
-Ben

Anon

yes there's a difference. take the following two code segments:

$foo = 7;
$bar = $foo++;
-------and--------
$foo = 7;

$bar = ++$foo;

in the first one, the assignment (=) is executed before the increment (++), so $bar gets a value of 7, and then $foo is incremented to 8. in the second one, the increment is executed before the assignment, so $foo is incremented to 8, and then $bar receives the value of $foo, which is 8.

however, by themselves ($foo++; or ++$foo😉 they do the exact same thing, practically speaking.

Anon

okay, thanks for the information :-). Now I now bit more about PHP 😃

Anon

yes,

there is a diff...

i think foll.... ex... will help :-

$a=10;
$b=0;

now if we do.....

$b=$a++;
// this is called post increment operator
echo $a; // will print 11
echo $b; // will print 10

and if we do.....

$b=++$a;
// this is called pre increment operator
echo $a; // will print 11
echo $b; // will print 11

vishwa vivek