php连接数据库

mysql-connect("数据库主机名或者IP"，“用户名”，“密码”);

$con=mysql_connect("localhost","root","123");

mysql_select_db("info");

mysql_query(select * from user limit 1);//php执行mysql查询

mysql_close($con);

mysql-query("set names 'utf-8'");//设置当前连接的字符编码