Weird php

[dreamwest]

I have no idea whats happening here

 

$action2 ="on";
echo $action2; // this echos on

if ($action2 != "off" || $action2 != "on"){
$action2 = "off";
}
echo $action2;  // this echos off

 

So this echos "on" "off" But the if statement says - if not off or on, set $action2 to off

[Alex]

It says 'if it doesn't equal on or it doesn't equal off'. So it will always run.

[dreamwest]

But $action2 does equal to "on", so the if statement shouldnt run

[Mark Baker]

You're confusing OR (||) with AND (&&)

 

if ($action2 != "off" || $action2 != "on"){

$action2 != "off"    -> True

$action2 != "on"    -> False

OR (||) means if either condition is true, execute the code

so because $action2 != "off" is True, the code is executed.

 

if ($action2 != "off" && $action2 != "on"){

$action2 != "off"    -> True

$action2 != "on"    -> False

AND (&&) means if both conditions are true, execute the code

so because $action2 != "on" is False, the code is not executed.

 

 

[dreamwest]

OK. I see it now, Thanks