PHP ? syntax

[TrimBalim]

Hey everyone,
 
I'm working on some php code and for the first time, I've seen some syntax that goes as follows:

$Result = isset($mValues['Result']) ? $mValues['Result'] : 0;

I'm not exactly sure what this does, but I can take a stab at it:

it checks if the value $mValues['Result'] is set, the ? says to check if it's true, and if it is, set $mValues['Result'] to 0?

 

 

 

 

Thanks in advance for any help!

[requinix]

It's the ternary operator and works like

if (isset($mValues['Result'])) { // X ? ___ : ___
	$temp = $mValues['Result']; // ___ ? Y : ___
} else {
	$temp = 0; // ___ ? ___ : Z
}

$Result = $temp;

Edited June 7, 2013 by requinix