php mysql 資料庫連線與部分基本操作

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!doctype html>
"utf-8"
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無標題文件<
/title>
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/head>
<?php 
$servername
="localhost"
;$username
="root"
;$password
="123456"
;// 建立連線
$conn
=mysqli_connect
($servername
,$username
,$password);
if(!$conn
)echo
"connected successfully"
;echo""
;$sql_create_database
="create database school";if
(mysqli_query
($conn
,$sql_create_database))
else
echo""
;$sql_select_database
="use school";if
(mysqli_query
($conn
,$sql_select_database))
else
echo""
;//$conn1 = new mysqli($servername, $username, $password, $school);
$sql_create_datatable
="create table class(
id int(6) unsigned auto_increment primary key,
name varchar(10) not null
)";if
(mysqli_query
($conn
,$sql_create_datatable))
else
echo""
;$sql_insert_data
="insert into class(name) values('million')"
;mysqli_query
($conn
,"insert into class(name) values('dream')");
if(mysqli_query
($conn
,$sql_insert_data))
else
echo""
."".
"the data is:"
;$sql_select
="select * from class"
;$result
=mysqli_query
($conn
,$sql_select);
if(mysqli_num_rows
($result
)>0)
}else
echo""
;if(mysqli_query
($conn
,"drop database school"))
;echo""
;if(mysqli_close
($conn))
?>
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/body>
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