Analysis on form validation of CI framework

This article mainly introduces the CI framework form verification method. It summarizes and analyzes the CI framework form verification rule settings, error prompts, view display and other related operating techniques and usage methods in the form of examples. Friends in need can refer to it

The example in this article describes the CI framework form verification method. Share it with everyone for your reference, the details are as follows:

1. Automatic output function of form header information (view)

 'email', 'id' => 'myform');
 echo form_open('email/send', $attributes);
 //上面一行代码输出：
 //

 /*
 * form_open_multipart()
 * 函数用法同上，加上了文件上传的信息 上传方式默认为post
 */
?>

2. Set verification rules (controller)

 'username',
           'label'  => '用户名',
           'rules'  => 'required'
         ),
        array(
           'field'  => 'password',
           'label'  => '密码',
           'rules'  => 'required'
         ),
        array(
           'field'  => 'passconf',
           'label'  => '确认密码',
           'rules'  => 'required|matches[password]'
         ),
        array(
           'field'  => 'tel',
           'label'  => '手机',
           'rules'  => 'required|integer|exact_length[11]'),
        array(
           'field'  => 'email',
           'label'  => '邮箱',
           'rules'  => 'required|valid_email'
         )
      );
//上面的会自动
//单独设置规则
$this->form_validation->set_rules('username', 'Username', 'trim|required|min_length[5]|max_length[12]|xss_clean');
$this->form_validation->set_rules('password', 'Password', 'trim|required|matches[passconf]|md5');
$this->form_validation->set_rules('passconf', 'Password Confirmation', 'trim|required');
$this->form_validation->set_rules('email', 'Email', 'trim|required|valid_email');
?>

3. Error prompts corresponding to the rules (controller)

form_validation->set_message('required', '必须填写');
$this->form_validation->set_message('valid_email', '不是有效的email');
?>

4. Run check error message (controller)

load->helper(array('form', 'url'));
 //加载CI表单验证库
 $this->load->library('form_validation');
 //----------------------------------------
 # 验证规则及错误信息代码放在这里
 //----------------------------------------
 if ($this->form_validation->run() == FALSE){
   //提交失败 重新加载表单部分
   $this->load->view('myform');
 }else{
   //提交成功 表单处理
   //跳转成功页面
   $this->load->view('formsuccess');
 }
}

5. Error message output function (view)

form_validation->set_error_delimiters('', '');
  //设置成内联元素比较好
?>

6. Refill the form (view) after an error

html code:

 
  
 


 
 
  
Username
  
  
  
Password
  
  
  
Password Confirm
  
  
  
Email Address
  
  
  

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