php 操作数据库

 1         $datetoday = date('Y-m-d');
 2         $datetime  = $thedate;
 3         $data_info = $data;
 4 
 5         $db = array(
 6             'dsn' => 'mysql:host=192.168.1.111;dbname=wz_action',
 7             'host' => '192.168.1.111',
 8             'dbname' => 'wz_action',
 9             'username' => 'root',
10             'password' => '123456',
11             'charset' => 'utf8',
12             'port' => '3306',
13         );
14         //建立连接
15         $link = mysql_connect($db['host'], $db['username'], $db['password']) or die( 'Could not connect: '  .  mysql_error ());
16         //选择数据库
17         mysql_select_db($db['dbname'], $link) or die ( 'Can\'t use foo : '  .  mysql_error ($link));
18         // 设置字符集
19         mysql_set_charset($db['charset'], $link);
20 
21         // 删除数据
22         mysql_query("delete from calendar where datetoday = '{$datetime}'");
23         // 保存数据
24         $exec="insert into calendar(datetoday,datetime,data_info) values('$datetoday','$datetime','$data_info')";
25         $result=mysql_query($exec);
26         // 查询语句
27         $sel_sql = "select datetoday from calendar where datetime = '{$thedate}'";
28         $res     = mysql_query($sel_sql);
29         $timeArr = mysql_fetch_array($res,MYSQL_NUM);