I need to get dynamic dependent variable value that increases when the other variable increases in P-CodePudding

Like this when x is 1000 and y becomes 0.1 and when x is 2000 and y becomes 0.2 like that in php. Please help me if you are a good at it.you can see in here as an example

CodePudding user response：

It seems clear that one variable depends on the other.

Maybe your best course of action would be to encapsulate that logic in a class; something as follows (please keep in mind I did not work on PHP since long time ago so the syntax might be wrong):

class MyX() {
  private $value: int = 0;

  public function setValue($value: int) : void {
    $this->value = $value;
  }

  public function getY(): float {
    return round($this->value / 10000, 10);
  }
}


$x = new MyX();
$x->setValue(1000);
print($x->getY());

By leveraging magic methods you might get something easier to use. But the main idea is still to keep all logic in a single place.

CodePudding user response：

if there is a certain ratio between x and y like in your example y=(x/10000). Why you are not just doing simple math in php. $y = $x/10000 where $x is set by you and $y is set by this formulation. If the $y is already set, you can just, re-set it with the same formula which overwrites previous set value. If I understand you properly.

EDIT UPON COMMENT BELOW: Try this simple function below. Check the demo

function so_set_y($x){
    return floor($x/1000)/10;
}

DEMO