yii ,sql, 增删节查

<br />utf8编码写到配置文件main.php中：<br />'db'=>array(<br />'connectionString' => 'mysql:host=localhost;dbname=test',<br />'emulatePrepare' => true,<br />'username' => 'root',<br />'password' => '123',<br />'charset' => 'utf8',  //此处设定编码<br />'tablePrefix' => 'tbl_',<br />),<br />控制器中：<br />  $conn=Yii::app()->db;<br />  $command=$conn->createCommand();<br />直接写语句：<br />  $command->text='select * from {{user}} where id=1';<br />  $dataReader=$command->query();<br />读取数据：<br />  foreach($dataReader as $row)<br />     { echo $row['name']; }<br /><br />  INSERT, UPDATE 和 DELETE 操作语句写法和上面类似，不过用execute：<br />  $rowCount=$command->execute();返回影响行数； <br />