oop - usage of multiple properties in php -

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i trying learn oop in php, below code not working provide alternate answer?

<?php     class abc {         public $a = 1;         $b = $a;          function foo(){             //some function..         }      } ?>

i want assign value of variable "a" variable "b".

you can assign value of $a $b so: $this->b = $this->a within __construct method gets called upon object creation, assuming you're running php 5.


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