| Operator | Sign | Syntax | Additional Information |
|---|---|---|---|
| Increment | ++ | $var++ | Returns $var, then increments $var by one |
| ++$var | Increments $var by one, then returns $var | ||
| Decrement | -- | $var-- | Returns $var, then decrements $var by one |
| --$var | Decrements $var by one, then returns $var |
<?php
$var = 3;
echo $var++; // echo $var, then increments $var by one
echo $var;
echo ++$var; // increments $var by one, then echo $var
echo $var;
echo $var--; // echo $var, then decrements $var by one
echo $var;
echo --$var; // decrements $var by one, then echo $var
echo $var;
?>[result]
34555433