Why are my CodeIgniter form values empty when form is submitted?

Question

While learning how to use Code Igniter, i have encountered a problem when submitting form values. I'm trying to do an insert if $_POST and redirect to the form if it wasn't successful, but every time i submit the form i see there are no form values in my header. Been unable to figure out what am doing wrong even after going through several related post, would appreciate the help of the experts here. Here's what I'm working with

View: new_product.php

<form action="products/new_product" method="POST" role="form">
    <legend>Upload New Item</legend>

    <div class="form-group">
        <label for="">Name</label>
        <input type="text" class="form-control" id="name" placeholder="Input field">
        <label for="">Description</label>
        <input type="text" class="form-control" id="description" placeholder="Input field">
        <label for="">Category</label>
        <input type="text" class="form-control" id="category" placeholder="Input field">
        <label for="">Price</label>
        <input type="text" class="form-control" id="price" placeholder="Input field">
    </div>

    <button type="submit" class="btn btn-primary">Upload</button>
</form>

Controller: products.php

public function new_product() 
{
    if ($_POST) {
        $data = array(
            'category' => $this->input->post('category'),
            'name' => $this->input->post('name'),
            //'photo' => $this->input->post('photo'),
            'description' => $this->input->post('description'),
            'price' => $this->input->post('price')
        );
        $this->product->upload_product($data);
        redirect(base_url().'products/');
    } else {
        $this->load->view('header', FALSE);
        $this->load->view('new_product');
        $this->load->view('footer', FALSE);
    }
}

Model: product.php

function upload_product($data) {
    $this->db->insert('products', $data);
    return $this->db->insert_id();
}

.htaccess

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]

header recorder during form submission

I'm sorry, don't know what you are referring to. Please bare with me, I'm a new to Codeigniter — Mena
– Mena, Commented Jul 19, 2016 at 10:29

rmondesilva · Accepted Answer · 2016-07-19 10:30:33Z

2

Try adding this inside your form,

<input type="hidden" name="<?php echo $this->security->get_csrf_token_name(); ?>" value="<?php echo $this->security->get_csrf_hash(); ?>">

So your mark up will be like this now,

<form action="products/new_product" method="POST" role="form">
    <input type="hidden" name="<?php echo $this->security->get_csrf_token_name(); ?>" value="<?php echo $this->security->get_csrf_hash(); ?>">
    <legend>Upload New Item</legend>

    <div class="form-group">
        <label for="">Name</label>
        <input type="text" class="form-control" id="name" placeholder="Input field">
        <label for="">Description</label>
        <input type="text" class="form-control" id="description" placeholder="Input field">
        <label for="">Category</label>
        <input type="text" class="form-control" id="category" placeholder="Input field">
        <label for="">Price</label>
        <input type="text" class="form-control" id="price" placeholder="Input field">
    </div>

    <button type="submit" class="btn btn-primary">Upload</button>
</form>

answered Jul 19, 2016 at 10:30

rmondesilva

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2 Comments

Mena Over a year ago

Appreciate the help. What's the csrf_token for?

rmondesilva Over a year ago

It is a security feature of CI (CodeIgniter) when you are sending form data. It is required. Read more about this here.

Siddhartha esunuri · Accepted Answer · 2016-07-19 10:32:56Z

Try this.. you missed name attribute

<form action="products/new_product" method="POST" role="form">
    <legend>Upload New Item</legend>

    <div class="form-group">
        <label for="">Name</label>
        <input type="text" class="form-control" name="name" id="name" placeholder="Input field">
        <label for="">Description</label>
        <input type="text" class="form-control" name="description" id="description" placeholder="Input field">
        <label for="">Category</label>
        <input type="text" class="form-control" name="category" id="category" placeholder="Input field">
        <label for="">Price</label>
        <input type="text" class="form-control" id="price" name="price" placeholder="Input field">
    </div>

    <button type="submit" class="btn btn-primary">Upload</button>
</form>

Pradeep · Accepted Answer · 2016-07-19 10:32:08Z

Your form should be llike this (NO name and value attributes given)

       <form action="products/new_product" method="POST" role="form">
              <legend>Upload New Item</legend>

             <div class="form-group">
                 <label for="">Name</label>
                   <input type="text" name="name" value="" class="form-control" id="name" placeholder="Input field">
                   <label for="">Description</label>
                   <input type="text" name="description" value="" class="form-control" id="description" placeholder="Input field">
                  <label for="">Category</label>
                 <input type="text" name="category" value="" class="form-control" id="category" placeholder="Input field">
                 <label for="">Price</label>
                  <input type="text" name="price" value="" class="form-control" id="price" placeholder="Input field">
            </div>

          <button name='submit' type="submit" class="btn btn-primary">Upload</button>
     </form>

http://www.w3schools.com/html/html_forms.asp

Ali · Accepted Answer · 2016-07-19 10:34:01Z

1

Ofcourse, CSRF will be required but your problem is different I think. You have missed to add a name property to each of your input tags.

e.g

<input type="text" class="form-control" id="name" name="first_name" placeholder="Input field">

answered Jul 19, 2016 at 10:34

Ali

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