$a++ VS ++$a?

[iridion9]

Can you guys explain to me the difference

thanks in advance.

[John_Betong]

Try this:

http://php.net/manual/en/language.operators.increment.php

[colshrapnel]

To test your newly acquired knowledge, answer the simple test: what would be the result of that simple code

$i = 5;
$i = ++$i + ++$i;
echo $i;