<?php

//CLASE MGMData
class MGMData {

	var $result;
	var $cant_rows;
	var $row;	

	function __construct($query) {
		//echo "<br><br>$query";
		$this->result = mysqli_query($_SESSION['conexion'], $query) or die(mysqli_error($_SESSION['conexion']));
		//echo '<br>result: '.$this->result;
		if (strtoupper(substr($query, 0, 6)) == 'SELECT') {
			$this->cant_rows = mysqli_num_rows($this->result);					
			}		
       }

    function Next() {
		$this->row = mysqli_fetch_array($this->result);
		return $this->row;	
       }

    function First() {
		if ($this->cant_rows > 0) {
			mysqli_data_seek($this->result, 0);
			}
       }

    function Close() {
		mysqli_free_result($this->result);
       }

    function Go($position) {
		if ($this->cant_rows > 0) {
			mysqli_data_seek($this->result, $position);
			}
       }
}
?>