PHP form validation using CodeIgniter

Question

I have a simple form and applied validation to using CodeIgniter's form_validation->set_rules.

It works fine but the only issue is when I submit the form with one field blank, it shows a message to fill in that field, but the others fields also become blank.

How can I solve this so that when I submit the form with one field blank, it should show a message for that field, and other fields should hold the data entered in it.

Below is the code:

View page:

<form name='frm1' action="<?php echo base_url(); ?>index.php/Registrationc/add_user"  id="form1" method="post">
   <input type="text" class="form-control" style="text-transform: capitalize;" autocomplete="off" id="fname" name="fname">
   <h6 style="color:red;"><?php echo form_error('fname');?></h6>

   <input type="text" class="form-control" style="text-transform: capitalize;" autocomplete="off" id="mname" name="mname">
   <h6 style="color:red;"> <?php echo form_error('mname');?></h6>

   <input type="text" class="form-control" style="text-transform: capitalize;" autocomplete="off" id="lname" name="lname">
   <h6 style="color:red;"><?php echo form_error('lname');?></h6>

   <center>
      <input type="submit" value="Submit" class="btn btn-bricky" id="subbtn" name="submit">
   </center>
</form>

Controller:

public function add_patient() {

    $this->form_validation->set_rules('fname', 'Firstname', 'trim|required|alpha');
    $this->form_validation->set_rules('mname', 'Middlename', 'trim|required|alpha');
    $this->form_validation->set_rules('lname', 'Lastname', 'trim|required|alpha');

    if ($this->form_validation->run() == FALSE) {
        $this->extra3();
    } else {
        $this->load->model('addpatientM');
        $fname1 = $this->input->post('fname');
        $lname1 = $this->input->post('lname');
        $mname1 = $this->input->post('mname');

        $submit = $this->addpatientM->insert_patient($fname1, $lname1, $mname1);
        if ($submit === true) {
            $this->load->library('session');
            $this->session->set_flashdata('success', 'successfully added');
        } else {
            $this->session->set_flashdata('fail', 'Opps there was some error while inserting');
        }
        redirect('Registrationc/extra3');
    }
}

yes you can read this post answer `https://stackoverflow.com/questions/11876604/php-codeigniter-set-value-on-dropdown-menu` — saddam, Jan 22 '18 at 10:18
right now i am not able to run this code but you can do one thing i.e get selected value in session , when you get back to view page after form validation error you can check session value and each data base value for drop down if session matched with then do selected that option tag and after finish this loop of drop down destroy the session. — saddam, Jan 22 '18 at 10:42
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/163630/discussion-between-nisha-and-saddam). — Nisha, Jan 22 '18 at 10:46

BudwiseЯ · Answer 1 · 2018-01-22T10:17:07.457

You need to echo set_value() into the value-attribute.

~~First you need to load form - helper:~~

$this->load->helper('form');

Update: Actually if you're using the form_validation library and using validation rules for the field in question, then there's no need to load the form helper separately for set_value.

Then use set_value in your view to set the value:

<input type="text" class="form-control" style="text-transform: capitalize;" 
autocomplete="off" id="lname" name="lname" value=<?= set_value("lname"); ?>>

Form Helper: Codeigniter documentation

PHP form validation using CodeIgniter

1 Answers1