<?php//连接MySQL$db = mysql_connect("localhost","root","root");if (!$db)  {  die(‘Could not connect: ‘ . mysql_error());  }//创建数据库if (!mysql_query("CREATE DATABASE my_db",$db))  {   echo "Error creating database: " . mysql_error();  }//选择数据库mysql_select_db("my_db", $db);//创建表$sql = "CREATE TABLE Persons (FirstName varchar(15),LastName varchar(15),Age int)";mysql_query($sql,$db);//插入数据mysql_query("INSERT INTO Persons (FirstName, LastName, Age) VALUES (‘Peter‘, ‘Griffin‘, ‘35‘)");mysql_query("INSERT INTO Persons (FirstName, LastName, Age) VALUES (‘Glenn‘, ‘Quagmire‘, ‘33‘)");//创建结果集$sql = "SELECT * FROM Persons";$result = mysql_query($sql); //在 HTML 表格中显示结果echo "<table border=‘1‘><tr><th>FirstName</th><th>LastName</th><th>Age</th></tr>";while($rs = mysql_fetch_array($result))  {  echo "<tr>";  echo "<td>" . $rs[‘FirstName‘] . "</td>";  echo "<td>" . $rs[‘LastName‘] . "</td>";  echo "<td>" . $rs[‘Age‘] . "</td>";  echo "</tr>";  }echo "</table>";//关闭连接mysql_close($db);?>