Undefined variable, never set by __construct

Asked Sep 12 '20 at 15:50

Active Sep 12 '20 at 15:52

Viewed 20 times

 class Test {
 
   public $num1;   public $num2;
 
   public function __construct($number1,$number2){
 
     $this->$num1 = $num1;
     $this->$num2 = $num2;   }
 
    public function divid(){
 
    
     $res =  $this->$num1 / $this->$num2;
 
     return $res;    }
 
    public function methodExp(){
 
 
     
     $resOfPow = exp($this->$num1, $this->$num2);
 
     return $resOfPow;    } 
}

$resultTest = new Test(10,5); 

 var_dump($resultTest);
 
 object(Test)[1]   public 'num1' => null   public 'num2' => null  
 public '10' => int 10   public '5' => int 5

echo $resultTest->divid();

When i call method php eroro show me undefined varibale on $num1 and $num2 as if he had never set values from __construct, and i do not why?

edited Sep 12 '20 at 15:52

Alon Eitan

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asked Sep 12 '20 at 15:50

Sava

4

You pass in `$number1` and then use `$num1` (same for the other variable). – Nigel Ren Sep 12 '20 at 15:53
Yes @NigelRen is right. Try to use correct variable names and unique names – Hariharan V. Sep 12 '20 at 15:55
3

`$this->$num1` should be `$this->num1` (same thing applies to your `num2` variable references). – Koala Yeung Sep 12 '20 at 15:56
i use __construct to set public veriables $num1 and $num2, adn then i use them in pulbic methods – Sava Sep 12 '20 at 15:56
1

There are simply a lot of careless mistakes in your code. – Koala Yeung Sep 12 '20 at 15:58

Undefined variable, never set by __construct

0 Answers0