Question

I’ve got a textbox that I am using to do calculations with based on the code entered into it. This code will have either a prefix or a suffix added to it. My problem is that in one code, the prefix and suffix rules will clash and cause both actions to happen, when I only want the prefix action to happen. Here’s the code:

//get suffix and prefix from input box
$suffix = $inputbox[strlen($inputbox)-1];
$prefix = $inputbox[0];

if($inputbox!="" && $suffix=="L" or $suffix=="P" or $suffix="Y" or $suffix=="T")
{
//do this
}

if($inputbox!="" && $inputbox=="NT")
{
//do that
}

With the code as it is, the script is doing both, because the input box is NT and it also has a suffix of T. What I want is to ignore the first rule, or put an operator in the first rule to say that it should only run if suffix is T and prefix is not N.

I know there is a simple way to do it, but it’s almost 1am and I want to finish this before I retire to my bed!

Answer 1

So switch the order and use an else. Also, you have a redundant rule, which I’ve removed. Also, your && has a higher precedence than your ors; but it’s also unnecessary. You’ve also mixed in an assignment with the condition. (Maybe get some rest?)

// Get suffix and prefix from input box
$suffix = $inputbox[strlen($inputbox)-1];
$prefix = $inputbox[0];

if($inputbox == "NT") {
    //do that
} elseif($suffix == "L" or $suffix == "P" or $suffix == "Y" or $suffix == "T") {
    //do this
}