php mysql教程增删改,PHP MySql增删改查，phpmysql增删改_PHP教程

PHP MySql增删改查，phpmysql增删改

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：

$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 "";

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

{

echo "

";

echo "";

echo $row['id'];//获取行中的id

echo "";

echo "";

echo $row['username'];

echo "";

echo "";

echo $row['password'];

echo "";

echo "";

}

echo "";

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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