<?php
class DBConexion
{
     public $link;

     public function __construct($host='', $user='', $pass='', $db='')
     {
          $this->link = mysql_connect($host, $user, $pass) or die (mysql_error());
          mysql_select_db($db, $this->link) or die (mysql_error());
     }

     public function query($strQuery)
     {
          $resource = mysql_query($strQuery, $this->link) or die (mysql_error());
          return $resource;
     }

     public function numRows($resource)
     {
          $nRows = mysql_num_rows($resource);

          if($nRows)
               return $nRows;
          else
               return 0;
     }

     public function fetchAssoc($resource)
     {
          $rows = mysql_fetch_assoc($resource);
          return $rows;
     }

     public function fetchRow($resource)
     {
          $rows = mysql_fetch_row($resource) or die (mysql_error());
          return $rows;
     }

     public function affectedRows($resource)
     {
          $nRows = mysql_affected_rows($resource) or die (mysql_error());

          return $nRows;
     }

     public function limpiarEntrada($string)
     {
          return mysql_real_escape_string($string);
     }

     public function close()
     {
          mysql_close($this->link);
          unset($this->link);
     }
}
?>