getting file name as null by using var_dump

Question

I have created file uploading function using ajax and codeigniter the problem is that when I am trying to upload an image it is working fine but when I try to upload document or excel file it is giving me null can anybody help me out to fix this issue

here is what error I am getting Array ( [error] => The filetype you are attempting to upload is not allowed.)

Here is my controller

public function post_forum() {
    $config['upload_path'] = './assets/uploads/';
    $config['allowed_types'] = 'gif|jpg|png|doc|docx|xls|xlsx|pdf';
    $this->load->library('upload', $config);

    if(!empty($_FILES['post_image']['name'])) {
         if (!$this->upload->do_upload('post_image')) {
             $error = array('error' => $this->upload->display_errors());
         } else {
             $dt = $this->upload->data();
             $file = $dt['file_name'];
         }
    } else {
        $file = '';
    }

    $word_dta    = $this->input->post('post_dt');
    $time_posted = time();
    $user_id     = $this->basic_model->is_login($this);
    empty($this->input->post('group_id')) ? $group_id   = '' : $group_id   = $this->input->post('group_id');
    empty($this->input->post('c_id'))     ? $company_id = '' : $company_id = $this->input->post('c_id');

    $data_upload = array(
        'upload_document' => $file,
        'discussion'      => $word_dta,
        'user_id'         => $user_id,
        'group_id'        => $group_id,
        'company_id'      => $company_id,
        'time_posted'     => $time_posted,
        'status'          => 'Posted'
    );

     $post_id = $this->basic_model->insertRecord($data_upload, 'forums');

$data = array(
         'file_name'   => $file,
         'data'        => $word_dta,
         'time_posted' => $time_posted,
         'post_id'     => $post_id,
         'name'        => $this->basic_model->getUserData(),
         'command'     => 'Submit Post'
     );

     $this->load->view('forum/includes/get_data', $data);
  }

This is my html form which I have created in views folder

<form method="POST" action="" id="postform" enctype="multipart/form-data" onsubmit="return false;">
                <input type="file" id="imageFieldId" name="post_image" />
                <div id="contentbox" contenteditable="true" name="post_dt">
                </div>
                <input type="submit" id="sb_art" class="btn_v2" value="Start Discussion" />
            </form>

This is my ajax call

$(document).ready(function(e) {
$("#postform").on('submit', (function(e) {
    $("#load").show();
    var form = this;
    var formData = new FormData(this);
    formData.append('post_dt', $("#contentbox").html());
    $.ajax({
        url         : "http://tfsquare.com/demo/forums/post_forum",
        type        : "POST",
        data        : formData,
        contentType : false,
        cache       : false,
        processData : false,
        success     : function(data) {
            $("#data_update").prepend($(data).fadeIn('slow'));
            $("#contentbox").empty();
            $('.no_st').css('display', 'none');
            form.reset();
        },
        complete: function() {
            $("#load").hide();
        }
    });
}));
});

maybe that file is just to big for your limit upload in your php.ini — Beginner, Mar 27 '17 at 06:24
array(1) { ["post_image"]=> array(5) { ["name"]=> string(35) "DISCUSSION FORUM CHANGES 2 (1).docx" ["type"]=> string(24) "application/octet-stream" ["tmp_name"]=> string(14) "/tmp/phpBGsfOC" ["error"]=> int(0) ["size"]=> int(14441) } } — Mark Alan, Mar 27 '17 at 06:40
Where exactly is it giving you null? Where in your code are you receiving unexpected results? — alaric, Mar 27 '17 at 06:45
@alaric var_dump($file_name) when i do this and also the file is not uploading neihter saving into the database — Mark Alan, Mar 27 '17 at 06:49
`$this->upload->data('file_name');` https://gyazo.com/9faf79d3a999436c3fb803b3a8dfd04c https://www.codeigniter.com/userguide3/libraries/file_uploading.html — Beginner, Mar 27 '17 at 06:51
@MarkAlan I haven't noticed in your posted code where $file_name actually exists. — alaric, Mar 27 '17 at 06:54

score 1 · Accepted Answer · answered Mar 28 '17 at 10:27

$config['allowed_types'] = 'gif|jpg|png|doc|docx|xls|xlsx|pdf';

Codeigniter validate files not only with their extension but also with their MIME type. Probably Your given excel files doesn't have the mime entries in your Mimes.php which is located in config.php. If you can find the content type add add it to the mime array in mimes.php. If not manually validate the extension by exploding the file name and Do not use codeigniter's 'allowed_types'. Try this

 if(!empty($_FILES['post_image']['name'])) {
         if (!$this->upload->do_upload('post_image')) {
             $error = array('error' => $this->upload->display_errors());
         } else {
             $ext = ['xls', 'xlsx'];
             $dt = $this->upload->data();
             $file = $dt['file_name'];
             if( in_array($dt['file_ext'], $ext){
                echo 'Valid File';
              }


         }
    } else {
        $file = '';
    }

I tried your code this is the error i am getting Array ( [error] => The filetype you are attempting to upload is not allowed. ) — Mark Alan, Mar 29 '17 at 10:35

getting file name as null by using var_dump

1 Answers1