Question

I am trying to compare the following: if the value is not an array or the value does not equal false, return.

if (is_array($value) != true || $value != false) return;

This, and any other variation I am trying doesnt seem to work. However, when I compare these individually in their own if statements they return the correct results.

Any help would be greatly appreciated!

Answer 1

You originally said “if it’s not an array or not false”. You’re thinking backwards. You want “if the value is an array or false continue, else return”.

So:

// This says: "if it's not (an array or false)"
if(!(is_array($value) || $value === FALSE)) return;

Using De Morgan’s laws, we can convert this to

// This says: "if it's not an array and not false"
if(!is_array($value) && $value !== FALSE) return;