php class private xuj public function setX value this value public fun

<?php
	class A {
    	private $x = 'xuj';
        
        public function setX($value) {
        	$this.x = $value;
        }
        
        public function getX() {
        	return $this.x;
        }
    }
    
    $a = new A();
    
    $a->setX('pizda');
    echo $a->getX();