Value In = Value Out

[Q695]

<?php
//started with:
$energy=$row_c['energy']--;

//tried:
$energy=$row_c['energy'];
echo $energy;
$energy=$energy--;

//value doesn't go -1, what's wrong?
?>

Edited October 15, 2012 by Q695

[PFMaBiSmAd]

Increment/decrement Operators

 

++$a Pre-increment Increments $a by one, then returns $a.

$a++ Post-increment Returns $a, then increments $a by one.

--$a Pre-decrement Decrements $a by one, then returns $a.

$a-- Post-decrement Returns $a, then decrements $a by one.

[DarkerAngel]

Assuming $energy is an integer

You would only need:

$energy--;

As oppose to:

$energy=$energy--;

 

So try as a full code:

<?php
$energy=$row_c['energy'];
$energy--;
echo $energy;
?>

[Q695]

Thanks, Darker Angel. I didn't know what was going wrong, but whatever you did solved it