Class problem

[Matpatnik]

Hi guys, I have this error when using this function generateNumber() it tell me Fatal error: Cannot access empty property.can someone enlighten me plz

<?phpclass generateLotto {	public $stringNumber;	public $maxNumber;	public $repeatNumber;		// doesn't work	function __constructor($maxNum=49, $repeat=5) {		$this->maxNumber = $maxNum;		$this->repeatNumber = $repeat;		$this->stringNumber = '';	}		// if __constructor is not set	function generateLotto($maxNum=49, $repeat=5) {		$this->maxNumber = $maxNum;		$this->repeatNumber = $repeat;		$this->stringNumber = '';		echo $this->maxNumber .' - '. $this->repeatNumber; // this work fine	}		function getRandomNumber() {		// chose a number between 1 and $maxNum		$this->stringNumber = mt_rand(1, $this->maxNumber); // this work fine	}		function generateNumber() {		echo '-'. $this->$repeatNumber .'-'; // problem is here: Fatal error: Cannot access empty property		for ($i=0; $i<$this->$repeatNumber; $i++) {			$this->getRandomNumber();			if (in_array($this->stringNumber, $lotto)) {				continue;			}			$lotto[$i] = $this->stringNumber;			echo $lotto[$i];		}		echo $lotto;		$this->stringNumber = implode('-', $lotto);	}		function showNumber() {  // this work fine		//$this->getRandomNumber();		return $this->stringNumber;	}}$LOTTOnumber = new generateLotto(50,3);$LOTTOnumber->generateNumber();echo ' -> '. $LOTTOnumber->showNumber();die();?>

[boen_robot]

$this->$repeatNumber

and

$this->repeatNumber

are two different things. The first is not a parsing error, which is why the rest still works. It would get the property that has the same name as the value of the $repeatNumber variable (that is in the current scope).The second is what you need. That will get the repeatNumber property.

[Matpatnik]

I forgot about the $ Thank you