codeigniter

问题 When I load the library of excel I got this error. I follow everything in this Tutorial and still got some error Im using codeigniter framework. Class 'CI_Excel' not found in /var/www/html/warehouse/system/core/Common.php on line 196 this is my controller class Dashboard extends CI_Controller { public function __construct(){ parent::__construct(); $this->load->library('excel'); $this->load->model('dashboard_model'); } public function download(){ $this->excel->setActiveSheetIndex(0); $this-

问题 I am trying to get Logged in user details in CodeIgniter (HMVC & Ion Auth) $data['user'] = $this->ion_auth->user()->row(); When i try to display i am getting error Undefined variable: user I am not sure how to get loggin in user id or email. I need id or email. Please help 回答1: If your are trying to display it in view, Are you passing the $data variable to the view ? $data['user']=$this->ion_auth->user()->row(); $this->load->view("filename",$data); If you are trying to access it with the

问题 I'm new in PHP and Codeigniter, by the way how to update database table when session in CI is expired and where I can put the code? I use uniqid in database, it's called token. here is my login table username, password, level, token, last_login, exp_time . and I want to change value token=null when session in Codeigniter is expired. 回答1: To do this you have to you have to extend CI_Session Create a php file inside application/core/MY_Session.php class MY_Session extends CI_Session { public

问题 I am new to PHP and CodeIgniter and I am trying to fetch data from a mysql table using MVC pattern of codeIgniter. My model class is: <?php class News_Model extends CI_Model { public function _construct() { $this->load->database(); } public function get_news($id) { if($id!=FALSE) { $query= $this->db->get_where('news', array('id' => $id)); return $query->row_array(); } else { return FALSE; } } } ?> and my database.php file is: $active_group = 'default'; $active_record = TRUE; $db['default'][

问题 I am currently trying to develop an image uploading website by using CodeIgniter. The thing is, I came across an issue today and I would really appreciate any kind of help in order to solve it. So basically, the site is working. But the thing is, that the files are not private. A user may want to ensure that the files the users upload are only visible by them, and not by someone who just guesses a bunch of urls. (eg. user1 uploads image1 which he wants to keep private, for himself =>

问题 Here's my problem I setup Codeigniter 3 in my local and use an thirdparty (MX thing) now that I have adjusted the file path, I wanted to change the file extension that is being fetch the controller. $this->load->view('welcome_message'); I change the file in views from: welcome_message.php to this welcome_message.html Now I get this error An Error Was Encountered Unable to load the requested file: welcome_message.php but I wanted to use the .html extension becuase the folder path that I will

问题 I chose to use tag instead of form_dropdown() from Form Helper because i can't set a class atribute to <option> tag. So I have a <select> and want to set a item with as "selected" . This data is coming from database. How I set this? I saw this: set_select() but I can't make work. Does anyone have a solution? 回答1: From the docs on the form_dropdown function: form_dropdown() Lets you create a standard drop-down field. The first parameter will contain the name of the field, the second parameter

问题 Question How do I return different results for the same resource? Details I have been searching for some time now about the proper way to build a RESTful API. Tons of great information out there. Now I am actually trying to apply this to my website and have run into a few snags. I found a few suggestions that said to base the resources on your database as a starting point, considering your database should be structured decently. Here is my scenario: My Site: Here is a little information about

问题 I want to store two dimensional array in session, where i keep creating the array through a function call. I am trying with this code function nextQuestion($questionId,$response) { $this->session->set_userdata("res[$questionId][]"),$response); } but this is not creating a two dimensional array 回答1: The key stored in the session must be a string but the value can be a multi dimensional array. You can retrieve the array, manipulate it and save it in the session again like this: $session

问题 I am using codeigniter 3 and I am having a strange issue using ajax. I'm trying to call two ajax simultaneously and I thought I have problem with my ajax code and I asked this question here and nothing worked with me. I kept making the code more simple and narrow it down until I discover that the problem seems to be with the codeigniter Here is my js code: do_download(); get_operation_status(); function get_operation_status() { //var url_process_info = "http://www.example.com/public/sleep