/*
	- Random Password Generator
	- Generates a password at random given specified limitations.
	
	$length               - The amount of characters the password should have.
	$useCapitalLetters    - Should the password consist of capital letters?
	$useNumbers           - Should the password consist of numbers?
	$useSpecialCharacters - Should the password consist of special characters?
	*/
	
	public function randomPassword($length = 7, $useCapitalLetters = true, $useNumbers = true, $useSpecialCharacters = true) {
		$chars = array(
			'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
			'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x',
			'y', 'z');
		
		$specialChars = array(
			'!', '%', '^', '&', '*', '(', ')', '@');
				
		$pass = '';
		
		for ($i = 0; $i < $length; $i++) {
			$rand = rand(0, 3);
			
			switch ($rand) {
			case 0:
				$pass .= $chars[rand(0, count($chars) - 1)];
				break;
			case 1:
				if ($useCapitalLetters)
					$pass .= strtoupper($chars[rand(0, count($chars) - 1)]);
				else
					$pass .= $chars[rand(0, count($chars) - 1)];
				
				break;
			case 2:
				if ($useNumbers)
					$pass .= rand(0, 9);
				else
					$pass .= $chars[rand(0, count($chars) - 1)];
				
				break;
			case 3:
				if ($useSpecialCharacters)
					$pass .= $specialChars[rand(0, count($specialChars) - 1)];
				else
					$pass .= $chars[rand(0, count($chars) - 1)];
				
				break;
			}
		}
		
		return $pass;
	}