Issue on OOP PHP -


i have class called captcha.php :

<?php class captcha {      const first_num   = 1;      const second_num  = 9;      private $num1 = rand(first_num,second_num);     private $num2 = rand(first_num,second_num);      function creatnums(){         return $num1;     } }

in index.php tried instantiate class 

<?php include_once('captcha.php'); $tat = new captcha(); $result = $tat->creatnums(); echo $result;

but not returning/ echoing thing on page. can please let me know why happening?

thansk

<?php class captcha {     const first_num   = 1;     const second_num  = 9;      private $num1;      private $num2;      function __construct(){         $this->num1 = rand(self::first_num, self::second_num);         $this->num2 = rand(self::first_num, self::second_num);     }      function creatnums(){         return $this->num1;     } }  $tat = new captcha(); $result = $tat->creatnums(); echo $result;

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