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//登陆提交控制器
public function logAction()
{
//获取登录表单参数
$userid = $this->getRequest()->getParam('userid');
$password = $this->getRequest()->getParam('psd');
//创建表模型并查询登录密码
$table = new user();
$where = 'userid ='.$userid;
$row = $table->fetchRow($where)->toArray();
//验证表单密码和数据库密码
if($row['password'] == $password)
{
//创建全局变量session用户名id
session_start();
$_SESSION['userid'] = $userid;
//显示登陆成功视图
$this->render('logok');
}
else
{
//密码错误显示登录失败视图
$this->render('logfailed');
}
}