mysql释放结果内存代码示例

$con = mysql_connect("localhost", "peter", "abc123");
　　if (!$con)
　　{
　　die('Could not connect: ' . mysql_error());
　　}
　　$db_selected = mysql_select_db("test_db",$con);
　　$sql = "SELECT * from Person";
　　$result = mysql_query($sql,$con);
　　print_r(mysql_fetch_row($result));
　　// 释放内存
　　mysql_free_result($result);
　　$sql = "SELECT * from Customers";
　　$result = mysql_query($sql,$con);
　　print_r(mysql_fetch_row($result));
　　mysql_close($con);
　　?>