Nasty Loop When Using DB Class

[JohnN4]

I made a db class to take care of my querys, but when i try to use it, the page just doesn't show, it just keeps loading...🙁. What is wrong with my script?

<?
	class DBLayer {
	var $counter = 0;

	function DBLayer($db_host,$db_username,$db_password,$db_name) {
		$this->connect = @mysql_connect($db_host,$db_username,$db_password);
		if($this->connect) {
			if(@mysql_select_db($db_name,$this->connect)) {	
				return $this->connect;
			} else {
				die("<b>MySQL Error:</b> " . mysql_error() . "<br>");
			}
		} else {
			die("<b>MySQL Error:</b> " . mysql_error() . "<br>");
		}
	}
	function query($query) {
		$this->result = mysql_query($query);
		if(!$this->result) {
			$this->error = mysql_error();
			echo "<b>MySQL Error:</b> " . $this->error . "";
		}
		$detect1 = substr_count("$query", "DELETE");
		$detect2 = substr_count("$query", "UPDATE");
		$detect3 = substr_count("$query", "INSERT");
		if($detect1 || $detect2 || $detect2) {
			$this->affected_rows = mysql_affected_rows();
			$this->affected_rows_total += $this->affected_rows;
		}
		$this->counter++;
		return $this->result;
	}
	function fetch_array($query) {
		$this->result = mysql_query($query);
		$this->array = mysql_fetch_array($this->result);
		$this->counter++;
		return $this->array;
	}
	function result($query,$query2,$query3) {
		$this->result = mysql_query($query);
		$this->row = mysql_result($this->result,$query2,$query3);
		$this->counter++;
		return $this->row;
	}
	function num_rows($query) {
		$this->result = mysql_query($query);
		$this->num_rows = mysql_num_rows($this->result);
		$this->counter++;
		return $this->num_rows;
	}
	function count_queries() {
		return $this->counter;
	}
	function affected_rows() {
		if($this->affected_rows_total == "0") {
			$this->affected_rows_total = "0";
		}
		return $this->affected_rows_total; 
	}
	function close() {
		register_shutdown_function("mysql_close");
	}
}
?>