php - echo inside if loop

Question

I have a variable like this

$string = "0>0.1";

I want to evaluate this inside an if loop like this

if($string)
{
  ///something
}

but im getting an error if i am doing this. How to go about it

Answer 1

you do not understand how evaluations or strings work. If you put anything in a string, it will not be evaluated, but simply contain that value from that moment on.

$string = "0>0.1"; // contains "0>0.1"

$bool = 0>0.1; // contains TRUE

The IF statement needs a boolean, not a string.