从旧版本的codeigniter 2迁移到codeigniter 3.1.2

I have an application running on codeigniter version 2 and want to move it to codeigniter 3.1.2(latest version). I have downloaded codeigniter 3.1.2 and to begin with i have rewritten the controller, model and view files. But i am getting a error saying ,

An Error Was Encountered
Unable to load the requested class: Database

My controller is Login.php

<?php
class Login extends CI_Controller
{
    var $data;

    function  __construct() {
        parent::__construct();
        $this->load->helper('cookie');  

        $is_admin_logged_in = $this->admin_init_elements->admin_logged_in_status();  
        global $USER;
        if($is_admin_logged_in == TRUE){
            redirect('home');
            //;
        }

        //populate viewfor header / footer elements

        $this->admin_init_elements->init_elements('N');
        $this->load->model('mod_login');

    }

    function index(){
        //if Admin already logged in, send to Admin home

        $this->data['message']='';
        $this->data['msg_class'] = '';
        $post_array=$this->input->post();

        $data['old_images']=$this->mod_common->getBgImages();

        if($this->input->cookie('remember') == 'on')
        {
            //echo $this->input->cookie('username');
            $this->data['message']=strip_tags($this->mod_login->check_cookie_login());
            if($this->data['message']=='Login Successful'){
                $this->data['msg_class'] = 'sukses';
                 redirect('home');              
            }else{
                $this->data['msg_class'] = 'gagal';
            }
        } 
        if($this->input->post('action')=='adminLogin'){

        //print_r($this->input->post()); die;

            if(isset($post_array['remember'])){
                $username_cookie= array(
                    'name'   => 'uusername',
                    'value'  => $post_array['username'],
                    'expire' => '865000',
                    'secure' => FALSE
                );

                $password_cookie= array(
                    'name'   => 'userpass',
                    'value'  => $post_array['userpass'],
                    'expire' => '865000',
                    'secure' => FALSE
                );

                $remember_cookie= array(
                    'name'   => 'remember',
                    'value'  => 'on',
                    'expire' => '865000',
                    'secure' => FALSE
                );

                $this->input->set_cookie($username_cookie); 
                $this->input->set_cookie($password_cookie); 
                $this->input->set_cookie($remember_cookie); 
                //die;

            }
            else
            {
                if($this->input->cookie('remember') == 'on')
                {
                    if($this->input->cookie('uusername') != $post_array['username'])
                    {
                        delete_cookie("remember");
                        delete_cookie("uusername");
                        delete_cookie("userpass");
                    }
                } 
            }

            $this->data['message']=strip_tags($this->mod_login->validate_admin_login());
            if($this->data['message']=='Login Successful'){
                $this->data['msg_class'] = 'sukses';
                 redirect('home');              
            }else{
                $this->data['msg_class'] = 'gagal';
            }
        } /*else if(isset()){

        }*/


    ///////////////////////
        $this->data['cookieRemember'] = $this->input->cookie('remember');
        $this->data['cookieUsername'] = $this->input->cookie('username');
        $this->data['cookiePassword'] = $this->input->cookie('userpass');
        //echo $this->data['cookieRemember'];echo $this->data['cookieUsername']; echo $this->data['cookiePassword'];
    //////////////////////

        $this->data['cookiename']  = $this->input->cookie('name', false);
        $this->data['cookieimage'] = $this->input->cookie('image', false);

        $sess_msg = $this->session->userdata('session_msg');
        $session_msg_class = $this->session->userdata('session_msg_class');
        if(isset($sess_msg) && $sess_msg!= ''){
            $this->data['message']=$sess_msg;
            $this->data['msg_class'] = $session_msg_class!=''?$session_msg_class:'gagal';
        }
        //render full layout, specific to this function
        $this->load->view('login', $this->data);
    }

////////////////////////////////////////////////////////////////////////////////    
    function forgot_password(){
         $this->load->view('send_reset_link', $this->data);
    }

    function send_pass_reset_link(){

        $post_array=$this->input->post();
        if($post_array['email']!='') { 
        $email_id=$post_array['email'];

        $user_id=$this->mod_common->get_userid($post_array['email']);

        foreach($user_id as $key){
            $id=$key['id'];
        }

        if($id>0){

        $link=base_url().'login/reset_password/'.$id;
        $message_body="<table>
                        <tr><td style='padding:10px 0px'>Dear User,</td></tr>
                        <tr><td style='padding:10px 0px'>You have received this communication in response to your request to reset your online portal account password. Please find below the link to reset your password</td></tr>
                        <tr ><td style='padding:10px 0px'><a href='".$link."' style='background:red;padding:5px 10px;color:#fff'> Reset Password </a></td></tr>
                        <tr ><td style='padding:10px 0px'>Regards,<br>Unfold</td></tr>

                       </table>";

        /*-------------------------*/
        //sending pass reset mail 
        $this->load->library('email');
/*      $config['protocol']     =   'sendmail';
        $config['mailpath']     =   '/usr/sbin/sendmail';
        $config['charset']      =   'iso-8859-1';
        $config['wordwrap']     =    TRUE;
        $config['mailtype']     =   'html';  */

        $config['protocol']     = 'sendmail';
        $config['mailpath']     = '/usr/sbin/sendmail';
        $config['charset']      = 'iso-8859-1';
        $config['wordwrap']     = TRUE;
        $config['mailtype']     = 'html'; 
        $this->email->initialize($config);

        $this->email->set_newline("
");
        $this->email->from("info@unfold.com","Admin");//email id and name of the sender
        $this->email->to($email_id); // email id of the recipient
        $this->email->subject("Reset Password"); //The subject line
        $this->email->message($message_body);
        $this->email->send();
        //$this->email->clear();
        //show_error($this->email->print_debugger());
        //die;
        /*-------------------------*/
        $this->data['reset_link_msg']="An email with the password reset link has been sent to your mail address.";
     }else{
        $this->data['reset_link_msg']="Sorry! The email entered is not in our database.";
     }  
        } else {$this->data['reset_link_msg'] = '';}

        $this->load->view('send_reset_link', $this->data);

    } 

    function reset_password(){
        if($this->input->post()){   

            $post_array=$this->input->post();
            $this->data['reset_msg']=$this->mod_common->reset_password($post_array);
            $this->load->view('reset_password', $this->data);
        }

        if($this->uri->segment(3)!=''){
         $this->data['id']=$this->uri->segment(3);
         $this->load->view('reset_password', $this->data);
        }
        else{
            redirect('login');
        }
    }










    // Admin authentication ----------
}

?>

My Model is Mod_login.php

<?php 
    class Mod_login extends CI_Model{
        var $myTables;
        #print_r($this->db->last_query());

        function  __construct(){
            parent::__construct();
            $this->myTables=$this->config->item('myTables');
            $this->load->helper('cookie');   
        }

        function validate_admin_login(){
            $this->form_validation->set_rules('username', 'Username', 'trim|required');
            $this->form_validation->set_rules('userpass', 'Password', 'trim|required');
            if ($this->form_validation->run() == TRUE){
                return $this->check_admin_login();
            }else{
                return validation_errors();
            }

        }
        function check_cookie_login(){

            $this->db->where('username', trim($this->input->cookie('uusername')));
            $this->db->where('userpass ', sha1(trim($this->input->cookie('userpass'))));
            $this->db->where('status', '1');
            $this->db->where('deleted', '0');
            $this->db->select('*');
            $query = $this->db->get($this->myTables['users']);

            if($query->num_rows() > 0){
                $row = $query->row();
                $this->db->where('userid', $row->id);
                $this->db->select('firstname,lastname,profileimage');
                $query1 = $this->db->get($this->myTables['users_details']);
                $row1 = $query1->row();
                $newdata = array(
                                    'is_admin_logged_in' => true,
                                    'admin_user_name' => $row->username,
                                    'admin_userpass' => $row->userpass,
                                    'admin_id'=>$row->id,
                                    'admin_lastlogin'=>date("d-m-Y H:i:s",$row->lastlogin),
                                    'admin_lastloginip'=>$row->lastloginip,
                                    'lastrefresh'=>time() 
                            );

                $this->session->set_userdata($newdata); 
                $this->update_admin_login_time($this->session->userdata('admin_id'));
                $this->admin_init_elements->set_global_user($row->username,$row->userpass);
                if($this->input->post('remember'))
                {
                    $cookie = array('name'   => 'username','value'  => $row->username,'expire' =>  time()+7600,'secure' => false);
                    $this->input->set_cookie($cookie);
                }
                $name = $row1->firstname.' '.$row1->lastname;
                $cookie1 = array('name'   => 'name','value'  => $name,'expire' =>  time()+7600,'secure' => false);
                $this->input->set_cookie($cookie1); 
                $cookie2 = array('name'   => 'image','value'  => $row1->profileimage,'expire' =>  time()+7600,'secure' => false);
                $this->input->set_cookie($cookie2); 


                return 'Login Successful';
            }else{

            }

        }
        function check_admin_login(){

            $this->db->where('username', trim($this->input->post('username')));
            $this->db->where('userpass ', sha1(trim($this->input->post('userpass'))));
            $this->db->where('status', '1');
            $this->db->where('deleted', '0');
            $this->db->select('*');
            $query = $this->db->get($this->myTables['users']);
            if($query->num_rows() > 0){
                $row = $query->row();
                $this->db->where('userid', $row->id);
                $this->db->select('firstname,lastname,profileimage');
                $query1 = $this->db->get($this->myTables['users_details']);
                $row1 = $query1->row();
                $newdata = array(
                                    'is_admin_logged_in' => true,
                                    'admin_user_name' => $row->username,
                                    'admin_userpass' => $row->userpass,
                                    'admin_id'=>$row->id,
                                    'admin_lastlogin'=>date("d-m-Y H:i:s",$row->lastlogin),
                                    'admin_lastloginip'=>$row->lastloginip,
                                    'lastrefresh'=>time() 
                            );

                $this->session->set_userdata($newdata); 
                $this->update_admin_login_time($this->session->userdata('admin_id'));
                $this->admin_init_elements->set_global_user($row->username,$row->userpass);
                if($this->input->post('remember'))
                {
                    $cookie = array('name'   => 'username','value'  => $row->username,'expire' =>  time()+7600,'secure' => false);
                    $this->input->set_cookie($cookie);
                }
                $name = $row1->firstname.' '.$row1->lastname;
                $cookie1 = array('name'   => 'name','value'  => $name,'expire' =>  time()+7600,'secure' => false);
                $this->input->set_cookie($cookie1); 
                $cookie2 = array('name'   => 'image','value'  => $row1->profileimage,'expire' =>  time()+7600,'secure' => false);
                $this->input->set_cookie($cookie2); 


                return 'Login Successful';
            }else{
                return 'Incorrect Username or Password.';
            }

        }
        function logout()
        {
            global $USER;

            $query1 = $this->db->query("Select * from pr_system_attendance where userid = '".$USER->id."' and DATE(`login_time`) = CURDATE()");
            date_default_timezone_set('Asia/Calcutta');
            if($query1->num_rows() > 0)
            {
                $row = $query1->row();

                $sql1 = "UPDATE pr_system_attendance set logout_time = '".date('Y-m-d H:i:s')."'  where userid = '".$USER->id."' and DATE(`login_time`) = CURDATE()";



                $query2 = $this->db->query($sql1);


            }
            $sql="UPDATE `".$this->myTables['users']."` SET 
                    `if_online` = '0'
                     WHERE `id` = '".$USER->id."'" ;
            $query=$this->db->query($sql);  

        }
        function update_admin_login_time($id){
            $sql="UPDATE `".$this->myTables['users']."` SET 
                    `lastlogin` = '".time()."',
                    `if_online` = '1',
                    `lastrefresh` = '".time()."',
                    `lastloginip` = '".$_SERVER['REMOTE_ADDR']."'
                    WHERE `id` = '".$id."'" ;
            $query=$this->db->query($sql);  
            $query1 = $this->db->query("Select * from pr_system_attendance where userid = '".$id."' and DATE(`login_time`) = CURDATE()");
            if($query1->num_rows() <= 0)
            {
                $sql1 = "INSERT INTO pr_system_attendance(userid,login_time,login_ip) VALUES('".$id."','".date('Y-m-d H:i:s')."','".$_SERVER['REMOTE_ADDR']."')";
                $query2 = $this->db->query($sql1);
            }

        }

    }

My view file is login.php

<?php global $SITE; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <?php error_reporting(0); ?>
        <!-- Bootstrap 3.3.5 -->
        <link rel="stylesheet" href="<?php echo base_url(); ?>assets/bootstrap/css/bootstrap.min.css">
        <!-- Font Awesome -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
        <!-- Ionicons -->
        <link rel="stylesheet" href="https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css">
        <!-- Theme style -->
        <link rel="stylesheet" href="<?php echo base_url(); ?>assets/dist/css/main.css">
        <!-- iCheck -->
        <link rel="stylesheet" href="<?php echo base_url(); ?>assets/plugins/iCheck/square/blue.css">

        <!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
        <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
        <!--[if lt IE 9]>
            <script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
            <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
        <![endif]-->
    </head>
    <?php 
    $old_home_bg = $old_images[0]['login_bg'];
$home_url = base_url().'assets/images/1406147562_1213214397.jpg';
    ?>
<body class="hold-transition login-page">
    <div class="login-box">
      <div class="col-md-6 hide-side" >
        <img src="<?php echo base_url(); ?>/assets/images/side_login.jpg">
      </div>
       <div class="col-md-6">
      <div class="login-logo">
        <a href=""><img src="<?php echo base_url(); ?>assets/images/logo.png" class="logo_login" alt="" width="190px"/> </a>
      </div>
      <div class="login-box-body">

       <?php echo form_open('login/', array('method'=>'post','name'=>'adminLoginForm','id'=>'adminLoginForm','class'=>'form-vertical login-form'));?>
        <?php if($message!='') {?>
        <div class="messages">

            <div class="has-error">
            <?php echo $message; ?>
            </div>
        </div>
        <?php } ?>
          <div class="form-group">
            <div class="input-group">
                <span class="input-group-addon"><i class="fa fa-user"></i></span>
                <input type="text" class="form-control login" id="username" name="username" placeholder="Username">
            </div>

          </div>
          <div class="form-group has-feedback">
            <div class="input-group">
                <span class="input-group-addon"><i class="fa fa-lock"></i></span>
                <input type="password" class="form-control" id="userpass" name="userpass" placeholder="Password">
            </div>
          </div>
          <?php
                                    echo form_hidden('action','adminLogin');
         ?>
          <div class="row">
            <div class="col-xs-8">
             <div style="float:left;margin-top: 7px;">
                                    <input type="checkbox" name="remember" /> Remember <br>
                                    <?php 
                                        echo anchor(site_url("login/forgot_password"),'<div style="text-align:right;margin-top:5px;color:#C95356;font-weight:bold;">Forgot Password</div>','title="Need help?"');        
                                        echo '&nbsp; &nbsp;'; 
                                        //echo anchor(site_url("signup"),$this->lang->line('label_sign_up')); 
                                    ?>
                                </div>
            </div><!-- /.col -->
            <div class="col-xs-4">
              <button type="submit" name="login" class="btn btn-primary btn-block btn-flat btn-login">Sign In</button>
            </div><!-- /.col -->
          </div>
        </form>
        </div><!-- /.login-box-body -->
        </div>
        <div class="clearfix"></div>
    </div><!-- /.login-box -->
    <div class="login_footer">
        <div class="fl" style="float:left;padding:0px 20px;color:#fff;">
            &copy; 2015 Zipbizz <br>
            <a href="" style="color:#fff;">Terms & Conditions</a>
        </div>
        <div class="fr" style="float:right; padding:0px 20px;color:#fff;">
            Powered By<br>
            <img src="<?php echo base_url(); ?>/assets/images/footer_logo.png">
        </div>
    </div>
    <!-- jQuery 2.1.4 -->
    <script src="<?php echo base_url(); ?>assets/plugins/jQuery/jQuery-2.1.4.min.js"></script>
    <!-- Bootstrap 3.3.5 -->
    <script src="<?php echo base_url(); ?>assets/bootstrap/js/bootstrap.min.js"></script>
    <!-- iCheck -->
    <script src="<?php echo base_url(); ?>assets/plugins/iCheck/icheck.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-backstretch/2.0.4/jquery.backstretch.min.js"></script>
    <script>
      $(function () {
        $('input').iCheck({
          checkboxClass: 'icheckbox_square-blue',
          radioClass: 'iradio_square-blue',
          increaseArea: '20%' // optional
        });
        $.backstretch([
            "<?php echo $home_url; ?>"
            ], {
              fade: 1000,
              duration: 8000
        }); 
      });
    </script>

</body>
</html>

1个回答



您是否尝试在application / config / autoload.php上自动加载数据库</ p>

  $ autoload ['libraries'] = array('database'); 
</ code> </ pre>

确保在application / config / database.php中设置了数据库连接< / p>
</ div>

展开原文

原文

Have you tried to autoload the database on application/config/autoload.php

$autoload['libraries'] = array('database');

Make sure you have set your database connection in application/config/database.php

duangu4943
duangu4943 按照此处标记的所有步骤进行了codeigniter.com/userguide3/installation/upgrade_223.html并且它工作了..也是上面改了,谢谢
3 年多之前 回复
Csdn user default icon
上传中...
上传图片
插入图片
抄袭、复制答案,以达到刷声望分或其他目的的行为,在CSDN问答是严格禁止的,一经发现立刻封号。是时候展现真正的技术了!
其他相关推荐
将Codeigniter数据库迁移到Wordpress

<div class="post-text" itemprop="text"> <p>I have been trying to import or migrate the Codeigniter database into wordpress. Is that possible to do by any means? I have searched for the solution for it at many places but was unable to find a relevant solution to it. The real problem is that I have already got a website created in CodeIgniter but now I am making a new site for the same using Wordpress. I need to import all the data and posts contained in the older site into the new one. Maybe database migration can be a easier idea. How will be doing so??</p> </div>

从CodeIgniter迁移大型应用程序的可接受方式

<div class="post-text" itemprop="text"> <p>We have a huge website written in a old (7 years old) modified version of CodeIgniter and we're stuck on php 5.4 because of that. This app started very very small but increased a huge deal in these years and we're doing changes to it on a daily basis, so the code is not quite clean, we have hacks everywhere, many versioned assets loaded at same time because they are dependencies of the layout, etc... anyway, not pretty at all.</p> <p>We would like to move to Yii 2 because that's something we're very familiar with and we have other apps written in it, it supports higher versions of PHP, composer, etc etc, you get the point.</p> <p>We don't have an army of devs so that some of us can rewrite the app from scratch and some of us continue developing the current one, thus i think we should start rewriting small parts of it and using nginx would redirect the traffic to the newly rewritten parts, and do so till the entire rewrite is done, basically for a while, both apps would run in parallel sharing same database but accessing various urls would access one app or the other.</p> <p>Has any of you gone this road and can share the experience, some pointers, etc ?</p> </div>

在Codeigniter 3.1.2中构造问题

<div class="post-text" itemprop="text"> <p>We have recently updated to Codeigniter 3.1.2 and got one issue.</p> <p>We have call one controller file to anther controller file using below code. </p> <p>First Controller :</p> <hr> <pre><code>$this-&gt;load-&gt;library('../controllers/secondcontroller'); $this-&gt;secondcontroller-&gt;functionName(); </code></pre> <p>Second Controller : </p> <hr> <pre><code>class Secondcontroller extends CI_Controller { public function __construct() { parent::__construct(); $CI =&amp; get_instance(); $CI-&gt;load-&gt;helper(array('form','url','file')); </code></pre> <p>It was working fine in last version but i have checked that now it not working Codeigniter 3.1.2</p> <p>Could you please help to change correct code based on version. </p> <p>Thanks in Advance .</p> </div>

将codeigniter迁移到另一台服务器

<div class="post-text" itemprop="text"> <p>I'm new with codeigniter and right now I'm trying to migrate a codeigniter application to another server. This application was in another server and now I want to move it to another server. In this server I have also a wordpress website and it works perfectly.</p> <p>Firstly, what I have done it's a backup from the mysql database and from the files and I have move them via ftp to the another server under the /inventarios folder, so if I wrote on my browser </p> <pre><code>http://xxxxxx.com/inventarios </code></pre> <p>I should see the codeigniter application but what I receive it's a 404 error with the Wordpress interface</p> <p>I have change the database.php and the another files from the config folder and it doesn't work. Why?. Under the inventarios folder I don't have a .htaccess file. Could you help me,please?. Thanks and let me know if you need more details.</p> <p><strong>EDIT 01</strong></p> <p>The htaccess which I have in the root folder is this:</p> <pre><code># BEGIN WordPress &lt;IfModule mod_rewrite.c&gt; RewriteEngine On RewriteBase / RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] &lt;/IfModule&gt; # END WordPress </code></pre> <p>I don't know if inside of inventarios I should place another htaccess.</p> <p>Thanks so much</p> </div>

从codeigniter到laravel创建后备网址

<div class="post-text" itemprop="text"> <p>we are using codeigniter as our current framework, but now we are working on laravel to enhance some features, but one of the problem we are facing is to give the fallback for old url use in codeigniter, our current url looks like</p> <p>www.school.com/index.php/student/subjects/102030</p> <p>how to convert this to this</p> <p>www.school.com/students/subjects/102030</p> <p>having problem dealing with index.php in our urls, as they are indexed in google which would really annoy them, and would be awful with seo </p> </div>

Codeigniter 2迁移运行最新版本

<div class="post-text" itemprop="text"> <p>In codeigniter2 i have the following migration file (1 to 8).</p> <p>When running the method <code>$this-&gt;migration-&gt;latest()</code> i have observed the following:</p> <ol> <li><p>While migration version is 0 (in migration table) , Only the first(1) migration and latest(8) will be executed and the migration version in the table will be updated to 8.</p></li> <li><p>While migration version is greater &gt;= 1, all migration file from 1 to 8 will be executed. The migration version in the table will be updated to 8.</p></li> </ol> <p>Q : Is that normal? Or I am missing something here? Thanks.</p> </div>

迁移在线服务器后,CodeIgniter网站重定向到localhost

<div class="post-text" itemprop="text"> <p>I just uploaded my application on my hosting account, the account is provided by <code>hostinger</code>. You can see the link <a href="http://primodebug.esy.es/Calendario/" rel="nofollow">here</a>. </p> <p><strong>Configuration file:</strong></p> <pre><code>&lt;?php class SystemConfiguration { // General Settings public static $base_url = 'http://primodebug.esy.es/Calendario/'; // Database Settings public static $db_host = 'mysql.hostinger.it'; public static $db_name = 'u460105738_primo'; public static $db_username = 'u460105738_ferve'; public static $db_password = '*****'; </code></pre> <p><a href="http://pastebin.com/Eyg6dpkH" rel="nofollow">CodeIgniter config.php file</a> (It's too long to paste here).</p> <p><strong>.HTACCESS</strong></p> <pre><code>Options +FollowSymlinks RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php?/$1 [L] </code></pre> <p>I also have other problems logging probably related files .httaccess I have no idea, but it seems that some javascript files are not loaded properly. What can be?</p> </div>

将旧的Web应用程序迁移到Codeigniter框架所需的步骤?

<div class="post-text" itemprop="text"> <p>I want to know the simplest (in general) steps required to migrate our old web applications (both, back end and front end) to Code Igniter Framework.<br> Please share your ideas / experience in this ! </p> <p>The old web pages doesn't have any framework at all. They are just just basic procedural PHP codes. </p> <p>Thanks, Bob</p> </div>

Codeigniter和Doctrine的问题,从Windows迁移到Linux服务器

<div class="post-text" itemprop="text"> <p>I’ve recently been learning how to use both Doctrine and CI and have been overhauling my website using both tools… all has been absolutely awesome up until the following issue(s) occurred:</p> <p>Essentially it would seem that either PHP, CI or Doctrine can’t find my Base classes unless I explicitly require/include them in the corresponding model’s class?</p> <blockquote> <p>EG: Fatal error: Class ‘BaseServiceCatagory’ not found</p> </blockquote> <p>My live site is sitting on a Linux box with PHP 5.2.6 and my dev site is on Windows with PHP 5.2.9-1. It works perfectly fine on Windows but the live site continually gives me the error posted above.</p> <p>I’m hoping that someone here might have had similar problem before and might have some suggestions regarding what might be the cause.</p> <p>Thanks in advance </p> </div>

Codeigniter 2手动数据库连接

<div class="post-text" itemprop="text"> <p>I have just been testing an upgrade to codeigniter 2 and have hit a snag. My site uses multiple databases, one being a 'system' database and one of several 'content' databases. Only two databases are loaded at once, the system and whichever content is necessary according to a value in the session.</p> <p>Because of the use of session, I connect to relevant content database in the constructor of the controllers through a function in MY_Controller.</p> <p>Somehow, since upgrading to codeigniter 2, the connection object to the content database doesn't make it to the model that would use it.</p> <p>I.E. the variable of the connection is public'ed at the top of the controllers and model and MY_Controller and MY_Model but by the time it has reached MY_Model, it is no longer an object.</p> <p>Any ideas what would reset the value of a variable as it is passed to the models in codeigniter 2 but not codeigniter 1.7.3?</p> </div>

Codeigniter迁移mysql到mysqli连接错误

<div class="post-text" itemprop="text"> <p>Long time reader, first time poster,</p> <p>I found this error pinging a webservice from my app after doing a migration to php 7.2 hosting environment from 5.6:</p> <pre><code>PHP Fatal error: Uncaught Error: Call to undefined function mysql_connect() in …system/database/drivers/mysql/mysql_driver.php </code></pre> <p>After some research, this looked like a simple one line fix in codeigniter framework from: <code>$db['default']['dbdriver'] = 'mysql';</code> to:</p> <pre><code>$db['default']['dbdriver'] = 'mysqli'; </code></pre> <p>When I make a server request from the app after this change, my error log returns nothing but is still not loading in the app as before. I have read other posts on the topic suggesting I would need to make other mysql-&gt;mysqli changes, tried doing this in driver files also with no luck. </p> </div>

我目前使用哪个版本的CodeIgniter?

<div class="post-text" itemprop="text"> <p>Quick question.</p> <p>Is there something similar to a <strong><code>phpinfo()</code></strong> - that would display the version for <strong><code>CodeIgniter</code></strong>? </p> <p>Thanks.</p> </div>

使用codeigniter框架下的oauth 2 build保护我的API

<div class="post-text" itemprop="text"> <p>I need to build my own API and i need to secure my API Using Oauth 2 server i Have try many ways to integrate Oauth 2 for the codeigniter as library but its not working there is errors how to integrate oauth server with codeigniter to secure my API any library ? plugin ? helpers? </p> <p><a href="http://oauth.net/2/" rel="nofollow">http://oauth.net/2/</a> </p> <p>I m trying to use this <a href="https://github.com/fkooman/php-oauth" rel="nofollow">https://github.com/fkooman/php-oauth</a></p> <p>How can i use those files inside Codeigniter </p> </div>

从JQuery调用CodeIgniter方法

<div class="post-text" itemprop="text"> <p>I want to call codeigniter method using jquery. My ajax call is working but getting an error. I have added my controller, model, ajax call and error.</p> <p>According to:</p> <pre><code>$("body").on("click", ".call-ajax", function() { // obtém o valor do link console.log("chamada ajax"); var caminho = "http://localhost/xxxxx/public/uploads/anexos/"; data = { id_rec: $(this).data("id_rec"), anexo: caminho + $(this).data("anexo") }; console.log(data); // AJAX para o controller $.ajax({ url: "reclamacao/delete_anexo", data: data, type: "POST" }).done(function(resp) { console.log("deleção OK"); // Display the resposne //$("#result").append($("&lt;li/&gt;").html(resp)); }); }); </code></pre> <p>It correctly calls</p> <p><a href="https://i.stack.imgur.com/tNoEJ.png" rel="nofollow noreferrer">Check Image 1</a></p> <p>But this error occurs:</p> <p><a href="https://i.stack.imgur.com/8A2hN.png" rel="nofollow noreferrer">Check image 2</a></p> <p>My <strong>CONTROLLER CODE</strong>:</p> <pre><code>public function delete_anexo($id, $file) { try { if (!$this-&gt;input-&gt;is_ajax_request()) { $this-&gt;output-&gt;set_status_header(404); return; } if (!$this-&gt;anexo_model_reclamacao-&gt;delete_anexo($id, $file)) throw new Exception("Erro ao excluir", 1); $alert = 'Operação Realizada com sucesso.'; } catch (exception $e) { $alert = $e-&gt;getMessage(); } bootbox_alert($alert); } </code></pre> <p><strong>MODEL CODE:</strong></p> <pre><code> public function delete_anexo($id, $file) { $this-&gt;db-&gt;delete($this-&gt;table, array('id_reclamacao' =&gt; $id, 'file' =&gt; $file)); return true; } </code></pre> </div>

Codeigniter htaccess重定向到非www

<div class="post-text" itemprop="text"> <p>I am using codeigniter.I want to redirect all users from www to non-www. I mean if user does a request to <code>http://www.example.com</code> it should be redirected to <code>http://example.com</code> or <code>http://www.example.com/url/1/2</code> to <code>http://example.com/url/1/2</code></p> <p>How can I achive this ? </p> <p><strong>My htacess code:</strong></p> <pre><code>RewriteEngine On RewriteCond %{REQUEST_URI} ^/system.* RewriteRule ^(.*)$ index.php/?$1 [QSA,L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.+)$ index.php/?$1 [QSA,L] </code></pre> </div>

如何在CodeIgniter的迁移中使用down()方法?

<div class="post-text" itemprop="text"> <p>I read the CodeIgniter's documentation about the migration class. I am able to perform the migration but how can I use the down() function in the migration?</p> <p>Here's the sample from the documentation</p> <pre><code>defined('BASEPATH') OR exit('No direct script access allowed'); class Migration_Add_blog extends CI_Migration { public function up() { $this-&gt;dbforge-&gt;add_field(array( 'blog_id' =&gt; array( 'type' =&gt; 'INT', 'constraint' =&gt; 5, 'unsigned' =&gt; TRUE, 'auto_increment' =&gt; TRUE ), 'blog_title' =&gt; array( 'type' =&gt; 'VARCHAR', 'constraint' =&gt; '100', ), 'blog_description' =&gt; array( 'type' =&gt; 'TEXT', 'null' =&gt; TRUE, ), )); $this-&gt;dbforge-&gt;create_table('blog'); } public function down() { $this-&gt;dbforge-&gt;drop_table('blog'); } </code></pre> <p>In my page I setup the migration like this:</p> <pre><code>class Migrate extends CI_Controller { public function __construct() { parent::__construct(); $this-&gt;load-&gt;library('migration'); } public function index() { $this-&gt;load-&gt;helper('template'); if(!$this-&gt;migration-&gt;current()) { show_error($this-&gt;migration-&gt;error_string()); } else { $data['message'] = 'migrate success'; } renderPage('common/migrate', $data); } } </code></pre> <p>How can I call the down() method?</p> </div>

CodeIgniter找不到CI_Controller

<div class="post-text" itemprop="text"> <p>I'm trying to get CodeIgniter running on my testserver (using XAMPP). I have set up everything like i usually do, plus I've copied all of the files from a working installation on my web server and just changed the necessary config options:</p> <ol> <li><p><code>Fatal error: Class 'CI_Controller' not found in D:\Websites\****\www\application\controllers\main.php on line 4</code></p></li> <li><p><code>Message: Undefined index: scaffolding_trigger, Filename: libraries/Router.php</code></p></li> </ol> <p>I'm pretty sure my controller is set-up properly, but in case it isn't here's the setup:</p> <pre><code>class Speaker extends CI_Controller { function __construct() { parent::__construct(); $this-&gt;load-&gt;helper('url'); } } </code></pre> <p>Anyone know what I'm doing wrong here?</p> </div>

Codeigniter所有URL都被路由到默认控制器

<div class="post-text" itemprop="text"> <p>I'm hoping someone can give me a suggestion on how to fix this. I've developed a codeigniter app and just uploaded it to a godaddy subdomain. It was working perfectly locally, however when running it at <code>ci.site.com</code>, all urls are being routed to the default controller. For instance, say my default controller is set to <code>$route['default_controller'] = 'home/index';</code>. If I go to <code>ci.site.com</code>, the home controller loads the index method just fine, however when going to <code>ci.site.com/users/index</code>, I'm routed back to <code>home/index</code> even though the url reads <code>ci.site.com/users/index</code>. </p> <p>This is what my <code>/.htaccess</code> looks like, the CI app and <code>.htaccess</code> are in document root : </p> <pre><code>&lt;IfModule mod_rewrite.c&gt; RewriteEngine On RewriteBase / RewriteCond %{REQUEST_URI} ^system.* RewriteRule ^(.*)$ /index.php?/$1 [L] RewriteCond %{REQUEST_URI} ^application.* RewriteRule ^(.*)$ /index.php?/$1 [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php?/$1 [L] &lt;/IfModule&gt; &lt;IfModule !mod_rewrite.c&gt; ErrorDocument 404 /index.php &lt;/IfModule&gt; </code></pre> <p>I've deployed several CI apps and have never run into this problem. Both my <code>base_url</code> and <code>index_page</code> config parameters are correct, I just can't seem to figure it out. Any suggestions would be much appreciated.</p> </div>

Codeigniter图像上传到服务器文件夹

<div class="post-text" itemprop="text"> <p>I am new to image uploading and would like to request for help about uploading file image into server folder . I am using ajax to send the image to my controller . This is what i received when i var_dump it in the controller. After calling $_FILES['croppedImage'] The result i get is </p> <pre><code>array(5) { ["name"]=&gt; string(4) "blob" ["type"]=&gt; string(10) "image/jpeg" ["tmp_name"]=&gt; string(14) "/tmp/phpqtmMQu" ["error"]=&gt; int(0) ["size"]=&gt; int(10686) } </code></pre> <p>This is my controller function that i use to upload my image into the server folder. </p> <pre><code> public function upload_base_64(){ $MY_UPLOAD_DIR = "alert_images/"; $imagefilename = basename( $_FILES['croppedImage']['name']); $fulluploadpath =base_url().'/uploads/'.$MY_UPLOAD_DIR. $imagefilename; $image_name = strip_tags($_FILES['croppedImage']['name']); $image_size = getimagesize($_FILES['croppedImage']['tmp_name']); if($image_size == FALSE) { echo 'The image was not uploaded'; } else if(move_uploaded_file($_FILES['croppedImage']['tmp_name'], $fulluploadpath )) { var_dump('it works');exit; } else { echo "Sorry, there was a problem uploading your file."; } } </code></pre> <p>It went to the else condition . I saw a few tutorial having this code but i do not know how to use it and why does it only require name?Doesn't it need the file? </p> <pre><code> public function uploadfeaturedfile() { $dir_name = 'alert_images/'; $config['upload_path'] = './uploads/'.$dir_name; $config['allowed_types'] = 'gif|jpg|png|jpeg'; $config['max_size'] = '5120'; $config['min_width'] = '640'; $config['min_height'] = '640'; $this-&gt;load-&gt;library('dbcupload', $config); $this-&gt;dbcupload-&gt;display_errors('', ''); if($this-&gt;dbcupload-&gt;do_upload('photoimg')) { $data = $this-&gt;dbcupload-&gt;data(); $this-&gt;load-&gt;helper('date'); $format = 'DATE_RFC822'; $time = time(); create_rectangle_thumb('./uploads/'.$dir_name.$data['file_name'],'./uploads/thumbs/'); $media['media_name'] = $data['file_name']; $media['media_url'] = base_url().'uploads/'.$dir_name.$data['file_name']; $media['create_time'] = standard_date($format, $time); $media['status'] = 1; $status['error'] = 0; $status['name'] = $data['file_name']; }else{ $errors = $this-&gt;dbcupload-&gt;display_errors(); $errors = str_replace('&lt;p&gt;','',$errors); $errors = str_replace('&lt;/p&gt;','',$errors); $status = array('error'=&gt;$errors,'name'=&gt;''); } echo json_encode($status); die; } </code></pre> <p>All help are really appreciated!!! Please and thanks in advance.</p> </div>

如何将变量从JavaScript传递给CodeIgniter

<div class="post-text" itemprop="text"> <p>I use the following code to send values to a server (PHP script) to take action accordingly. </p> <p>JS code: </p> <pre><code> $.ajax({ type: "POST", url: "/application/helpers/fb_login_assist.php", data: {fbname: name, fbid: id, fbemail: email, fbgender: gender, fbimageURL: imageURL}, success: function(data){ console.log("Data sent to server"); confirm("You have successfully logged in with FB"); window.location.reload(); } }); </code></pre> <p>It worked completely fine before I moved to CodeIgniter. However I'm confused no how to save the details in DB or fetch data from DB in CodeIgniter. </p> <p>P.S. I'm new to CodeIgniter.</p> </div>

Python数据挖掘简易入门

&nbsp; &nbsp; &nbsp; &nbsp; 本课程为Python数据挖掘方向的入门课程,课程主要以真实数据为基础,详细介绍数据挖掘入门的流程和使用Python实现pandas与numpy在数据挖掘方向的运用,并深入学习如何运用scikit-learn调用常用的数据挖掘算法解决数据挖掘问题,为进一步深入学习数据挖掘打下扎实的基础。

HoloLens2开发入门教程

本课程为HoloLens2开发入门教程,讲解部署开发环境,安装VS2019,Unity版本,Windows SDK,创建Unity项目,讲解如何使用MRTK,编辑器模拟手势交互,打包VS工程并编译部署应用到HoloLens上等。

2019 Python开发者日-培训

本次活动将秉承“只讲技术,拒绝空谈”的理念,邀请十余位身处一线的Python技术专家,重点围绕Web开发、自动化运维、数据分析、人工智能等技术模块,分享真实生产环境中使用Python应对IT挑战的真知灼见。此外,针对不同层次的开发者,大会还安排了深度培训实操环节,为开发者们带来更多深度实战的机会。

Only老K说-爬取妹子图片(简单入门)

安装第三方请求库 requests 被网站禁止了访问 原因是我们是Python过来的 重新给一段 可能还是存在用不了,使用网页的 编写代码 上面注意看匹配内容 User-Agent:请求对象 AppleWebKit:请求内核 Chrome浏览器 //请求网页 import requests import re //正则表达式 就是去不规则的网页里面提取有规律的信息 headers = { 'User-Agent':'存放浏览器里面的' } response = requests.get

2020_五一数学建模_C题_整理后的数据.zip

该数据是我的程序读取的数据,仅供参考,问题的解决方案:https://blog.csdn.net/qq_41228463/article/details/105993051

R语言入门基础

本课程旨在帮助学习者快速入门R语言: 课程系统详细地介绍了使用R语言进行数据处理的基本思路和方法。 课程能够帮助初学者快速入门数据处理。 课程通过大量的案例详细地介绍了如何使用R语言进行数据分析和处理 课程操作实际案例教学,通过编写代码演示R语言的基本使用方法和技巧

人才招聘系统PHP+MySQL源码

PHP 5.0及以上 + MySQL 5.0及以上 开发的人才招聘系统完全可运行源码,按照操作说明简单配置即可运行。学习PHPWEB应用的完整系统程序源码。

Java基础知识面试题(2020最新版)

文章目录Java概述何为编程什么是Javajdk1.5之后的三大版本JVM、JRE和JDK的关系什么是跨平台性?原理是什么Java语言有哪些特点什么是字节码?采用字节码的最大好处是什么什么是Java程序的主类?应用程序和小程序的主类有何不同?Java应用程序与小程序之间有那些差别?Java和C++的区别Oracle JDK 和 OpenJDK 的对比基础语法数据类型Java有哪些数据类型switc...

python可视化分析(matplotlib、seaborn、ggplot2)

python可视化分析总结(matplotlib、seaborn、ggplot)一、matplotlib库1、基本绘图命令3、图形参数设置4、特殊统计图的绘制4.1 数学函数图4.2 气泡图4.1 三维曲面图二、seaborn库1、常用统计图1.1 箱线图1.2 小提琴图1.3 点图1.4 条图与计数图1.5 分组图1.6 概率分布图2、联合图3、配对图三、ggplot库1、图层画法+常用图形2、快速绘图 一、matplotlib库 1、基本绘图命令 import matplotlib.pyplot as

Vue.js 2.0之全家桶系列视频课程

基于新的Vue.js 2.3版本, 目前新全的Vue.js教学视频,让你少走弯路,直达技术前沿! 1. 包含Vue.js全家桶(vue.js、vue-router、axios、vuex、vue-cli、webpack、ElementUI等) 2. 采用笔记+代码案例的形式讲解,通俗易懂

初级玩转Linux+Ubuntu(嵌入式开发基础课程)

课程主要面向嵌入式Linux初学者、工程师、学生 主要从一下几方面进行讲解: 1.linux学习路线、基本命令、高级命令 2.shell、vi及vim入门讲解 3.软件安装下载、NFS、Samba、FTP等服务器配置及使用

人工智能-计算机视觉实战之路(必备算法+深度学习+项目实战)

系列课程主要分为3大阶段:(1)首先掌握计算机视觉必备算法原理,结合Opencv进行学习与练手,通过实际视项目进行案例应用展示。(2)进军当下最火的深度学习进行视觉任务实战,掌握深度学习中必备算法原理与网络模型架构。(3)结合经典深度学习框架与实战项目进行实战,基于真实数据集展开业务分析与建模实战。整体风格通俗易懂,项目驱动学习与就业面试。 建议同学们按照下列顺序来进行学习:1.Python入门视频课程 2.Opencv计算机视觉实战(Python版) 3.深度学习框架-PyTorch实战/人工智能框架实战精讲:Keras项目 4.Python-深度学习-物体检测实战 5.后续实战课程按照自己喜好选择就可以

【大总结2】大学两年,写了这篇几十万字的干货总结

本文十天后设置为粉丝可见,喜欢的提前关注 不要白嫖请点赞 不要白嫖请点赞 不要白嫖请点赞 文中提到的书我都有电子版,可以评论邮箱发给你。 文中提到的书我都有电子版,可以评论邮箱发给你。 文中提到的书我都有电子版,可以评论邮箱发给你。 本篇文章应该算是Java后端开发技术栈的,但是大部分是基础知识,所以我觉得对任何方向都是有用的。 1、数据结构 数据结构是计算机存储、...

lena全身原图(非256*256版本,而是全身原图)

lena全身原图(非256*256版本,而是全身原图) lena原图很有意思,我们通常所用的256*256图片是在lena原图上截取了头部部分的256*256正方形得到的. 原图是花花公子杂志上的一个

【项目实战】 图书信息管理系统(Maven,mybatis)(第一个自己独立完成的项目)

《程序设计综合训练实践报告》 此项目为图书信息管理系统,是一个采用了mysql+mybatis框架+java编写的maven项目

图书管理系统(Java + Mysql)我的第一个完全自己做的实训项目

图书管理系统 Java + MySQL 完整实训代码,MVC三层架构组织,包含所有用到的图片资源以及数据库文件,大三上学期实训,注释很详细,按照阿里巴巴Java编程规范编写

Python入门视频精讲

Python入门视频培训课程以通俗易懂的方式讲解Python核心技术,Python基础,Python入门。适合初学者的教程,让你少走弯路! 课程内容包括:1.Python简介和安装 、2.第一个Python程序、PyCharm的使用 、3.Python基础、4.函数、5.高级特性、6.面向对象、7.模块、8.异常处理和IO操作、9.访问数据库MySQL。教学全程采用笔记+代码案例的形式讲解,通俗易懂!!!

20行代码教你用python给证件照换底色

20行代码教你用python给证件照换底色

2018年全国大学生计算机技能应用大赛决赛 大题

2018年全国大学生计算机技能应用大赛决赛大题,程序填空和程序设计(侵删)

MySQL数据库从入门到实战应用

限时福利1:购课进答疑群专享柳峰(刘运强)老师答疑服务 限时福利2:购课后添加学习助手(微信号:csdn590),按消息提示即可领取编程大礼包! 为什么说每一个程序员都应该学习MySQL? 根据《2019-2020年中国开发者调查报告》显示,超83%的开发者都在使用MySQL数据库。 使用量大同时,掌握MySQL早已是运维、DBA的必备技能,甚至部分IT开发岗位也要求对数据库使用和原理有深入的了解和掌握。 学习编程,你可能会犹豫选择 C++ 还是 Java;入门数据科学,你可能会纠结于选择 Python 还是 R;但无论如何, MySQL 都是 IT 从业人员不可或缺的技能! 【课程设计】 在本课程中,刘运强老师会结合自己十多年来对MySQL的心得体会,通过课程给你分享一条高效的MySQL入门捷径,让学员少走弯路,彻底搞懂MySQL。 本课程包含3大模块:&nbsp; 一、基础篇: 主要以最新的MySQL8.0安装为例帮助学员解决安装与配置MySQL的问题,并对MySQL8.0的新特性做一定介绍,为后续的课程展开做好环境部署。 二、SQL语言篇: 本篇主要讲解SQL语言的四大部分数据查询语言DQL,数据操纵语言DML,数据定义语言DDL,数据控制语言DCL,学会熟练对库表进行增删改查等必备技能。 三、MySQL进阶篇: 本篇可以帮助学员更加高效的管理线上的MySQL数据库;具备MySQL的日常运维能力,语句调优、备份恢复等思路。 &nbsp;

C/C++学习指南全套教程

C/C++学习的全套教程,从基本语法,基本原理,到界面开发、网络开发、Linux开发、安全算法,应用尽用。由毕业于清华大学的业内人士执课,为C/C++编程爱好者的教程。

C/C++跨平台研发从基础到高阶实战系列套餐

一 专题从基础的C语言核心到c++ 和stl完成基础强化; 二 再到数据结构,设计模式完成专业计算机技能强化; 三 通过跨平台网络编程,linux编程,qt界面编程,mfc编程,windows编程,c++与lua联合编程来完成应用强化 四 最后通过基于ffmpeg的音视频播放器,直播推流,屏幕录像,

我以为我对Mysql事务很熟,直到我遇到了阿里面试官

太惨了,面试又被吊打

专为程序员设计的数学课

<p> 限时福利限时福利,<span>15000+程序员的选择!</span> </p> <p> 购课后添加学习助手(微信号:csdn590),按提示消息领取编程大礼包!并获取讲师答疑服务! </p> <p> <br> </p> <p> 套餐中一共包含5门程序员必学的数学课程(共47讲) </p> <p> 课程1:《零基础入门微积分》 </p> <p> 课程2:《数理统计与概率论》 </p> <p> 课程3:《代码学习线性代数》 </p> <p> 课程4:《数据处理的最优化》 </p> <p> 课程5:《马尔可夫随机过程》 </p> <p> <br> </p> <p> 哪些人适合学习这门课程? </p> <p> 1)大学生,平时只学习了数学理论,并未接触如何应用数学解决编程问题; </p> <p> 2)对算法、数据结构掌握程度薄弱的人,数学可以让你更好的理解算法、数据结构原理及应用; </p> <p> 3)看不懂大牛代码设计思想的人,因为所有的程序设计底层逻辑都是数学; </p> <p> 4)想学习新技术,如:人工智能、机器学习、深度学习等,这门课程是你的必修课程; </p> <p> 5)想修炼更好的编程内功,在遇到问题时可以灵活的应用数学思维解决问题。 </p> <p> <br> </p> <p> 在这门「专为程序员设计的数学课」系列课中,我们保证你能收获到这些:<br> <br> <span> </span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">①价值300元编程课程大礼包</span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">②应用数学优化代码的实操方法</span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">③数学理论在编程实战中的应用</span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">④程序员必学的5大数学知识</span> </p> <p class="ql-long-24357476"> <span class="ql-author-24357476">⑤人工智能领域必修数学课</span> </p> <p> <br> 备注:此课程只讲程序员所需要的数学,即使你数学基础薄弱,也能听懂,只需要初中的数学知识就足矣。<br> <br> 如何听课? </p> <p> 1、登录CSDN学院 APP 在我的课程中进行学习; </p> <p> 2、登录CSDN学院官网。 </p> <p> <br> </p> <p> 购课后如何领取免费赠送的编程大礼包和加入答疑群? </p> <p> 购课后,添加助教微信:<span> csdn590</span>,按提示领取编程大礼包,或观看付费视频的第一节内容扫码进群答疑交流! </p> <p> <img src="https://img-bss.csdn.net/201912251155398753.jpg" alt=""> </p>

Eclipse archetype-catalog.xml

Eclipse Maven 创建Web 项目报错 Could not resolve archetype org.apache.maven.archetypes:maven-archetype-web

使用TensorFlow+keras快速构建图像分类模型

课程分为两条主线: 1&nbsp;从Tensorflow的基础知识开始,全面介绍Tensorflow和Keras相关内容。通过大量实战,掌握Tensorflow和Keras经常用到的各种建模方式,参数优化方法,自定义参数和模型的手段,以及对训练结果评估与分析的技巧。 2&nbsp;从机器学习基础算法开始,然后进入到图像分类领域,使用MNIST手写数据集和CIFAR10图像数据集,从简单神经网络到深度神经网络,再到卷积神经网络,最终完成复杂模型:残差网络的搭建。完成这条主线,学员将可以自如地使用机器学习的手段来达到图像分类的目的。

Python代码实现飞机大战

文章目录经典飞机大战一.游戏设定二.我方飞机三.敌方飞机四.发射子弹五.发放补给包六.主模块 经典飞机大战 源代码以及素材资料(图片,音频)可从下面的github中下载: 飞机大战源代码以及素材资料github项目地址链接 ————————————————————————————————————————————————————————— 不知道大家有没有打过飞机,喜不喜欢打飞机。当我第一次接触这个东西的时候,我的内心是被震撼到的。第一次接触打飞机的时候作者本人是身心愉悦的,因为周边的朋友都在打飞机, 每

最近面试Java后端开发的感受:如果就以平时项目经验来面试,通过估计很难,不信你来看看

在上周,我密集面试了若干位Java后端的候选人,工作经验在3到5年间。我的标准其实不复杂:第一能干活,第二Java基础要好,第三最好熟悉些分布式框架,我相信其它公司招初级开发时,应该也照着这个标准来面的。 我也知道,不少候选人能力其实不差,但面试时没准备或不会说,这样的人可能在进团队干活后确实能达到期望,但可能就无法通过面试,但面试官总是只根据面试情况来判断。 但现实情况是,大多数人可能面试前没准备,或准备方法不得当。要知道,我们平时干活更偏重于业务,不可能大量接触到算法,数据结构,底层代码这类面试必问

三个项目玩转深度学习(附1G源码)

从事大数据与人工智能开发与实践约十年,钱老师亲自见证了大数据行业的发展与人工智能的从冷到热。事实证明,计算机技术的发展,算力突破,海量数据,机器人技术等,开启了第四次工业革命的序章。深度学习图像分类一直是人工智能的经典任务,是智慧零售、安防、无人驾驶等机器视觉应用领域的核心技术之一,掌握图像分类技术是机器视觉学习的重中之重。针对现有线上学习的特点与实际需求,我们开发了人工智能案例实战系列课程。打造:以项目案例实践为驱动的课程学习方式,覆盖了智能零售,智慧交通等常见领域,通过基础学习、项目案例实践、社群答疑,三维立体的方式,打造最好的学习效果。

微信小程序开发实战之番茄时钟开发

微信小程序番茄时钟视频教程,本课程将带着各位学员开发一个小程序初级实战类项目,针对只看过官方文档而又无从下手的开发者来说,可以作为一个较好的练手项目,对于有小程序开发经验的开发者而言,可以更好加深对小程序各类组件和API 的理解,为更深层次高难度的项目做铺垫。

相关热词 c#对文件改写权限 c#中tostring c#支付宝回掉 c#转换成数字 c#判断除法是否有模 c# 横向chart c#控件选择多个 c#报表如何锁定表头 c#分级显示数据 c# 不区分大小写替换
立即提问
相关内容推荐