PHP MySql增删改查

mysql_connect()连接数据库
mysql_select_db选择数据库

mysql_fetch_assoc()获取结果集

mysql_query()执行sql语句

实例如下：

<?php
    $con=@mysql_connect('localhost','root','root');//连接数据库

    mysql_select_db('test',$con);//选择数据库

    $userInfo=mysql_query("select * from user",$con);//创建sql语句

    echo "<table>";

    while($row=mysql_fetch_assoc($userInfo))//获取结果集每一行的数据

    {

        echo "<tr>";

        echo "<td>";

        echo $row['id'];//获取行中的id

        echo "</td>";

        echo "<td>";

        echo $row['username'];

        echo "</td>";

        echo "<td>";

        echo $row['password'];

        echo "</td>";

        echo "</tr>";

    }

    echo "</table>";

    mysql_free_result($userInfo);//释放结果集

    mysql_close($con); //关闭数据库

    /*delete

    $d=@mysql_connect('localhost','root','root');

    mysql_select_db('test',$d);

    mysql_query("delete from user where id=1",$d);

    mysql_close($d);

    */

    /*insert

    $i=@mysql_connect('localhost','root','root');

    mysql_select_db('test',$i);

    mysql_query("insert into user(username,password) values('ad','ad')",$i);

    mysql_close($i);

    */

    //update

    $u=@mysql_connect('localhost','root','root');

    mysql_select_db('test',$u);

    mysql_query("update user set username='aaa' where username='00'",$u);

    echo "update user set username='ax' where id=2";

    mysql_close($u);
?>

谢谢支持！

可以联系我进行交流。Renhanlinbsl@163.com

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