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01-10-2011, 10:57 PM

[eluser]Roy MJ[/eluser]
Hi,

Can anyone help me in telling me how to get a javascript variable to transfer its value to a variable in php.??? I used a javascript for a multiple select box and the multiple selection is working fine. But i dunno how to get the value from the javascript variable which stores the result.

My controller looks like this :

Code:
function add(){

            $data['tourcategory'] = $this->Tour_packages_model->select_category();

            $data['destination'] = $this->Tour_packages_model->select_destination();

            //if data submitted ' '

            $this->load->plugin('js_calendar');

            if($this->input->post('Submit')){

            $config = array(

                     array('field'   => 'destination', 'label'   => 'Destination', 'rules'   => '')      

                    );

            $this->form_validation->set_rules($config);

            if ($this->form_validation->run() == FALSE)

            {

                $this->load->view('admin/tour_packages/add',$data);

            }

            else{

                    $this->Tour_packages_model->save('Add', $data);

                    redirect('/admin/tour_packages');

                }

        }else{

                $this->load->view('admin/tour_packages/add',$data);

        }    

    }

My model page looks like this :

Code:
function save($type='',$field='')

    {

            switch($type){

                case 'Add':

                $data = array(

                'destination' => $this->input->post('destination') 

                );

            $this->db->insert('tour_package', $data); 

            break;

     }

And my view looks like this :

Code:
&lt;head&gt;

&lt;/head&gt;

<table border=0>

            <tr>

            <td valign="top" width=175>

            <label for="departure">Destinations:* </label>

            <br>

            <select name="available"  style="width:150px" size=10>

            &lt;?php

            foreach($destination as $row)

            {

            ?&gt;

            <option value=&lt;?php echo $row->destination?&gt;>&lt;?php echo $row->destination?&gt;

            &lt;?php

            }

            ?&gt;

            </select>

            </td>

            <td valign="top">

            Your Choices:

            <br>

            <select multiple name="destination" style="width:150px;" size="10">

            </select>

            </td>

            </tr>

            <tr>

            <td colspan=2 height=10>

            &lt;input type="button" value="Remove"&gt;

            &lt;input type="button" value="Get Selected Values"&gt;

            </td>

            </td>

            </tr>

            </table>

         <button value="Send" name="Submit" id="submit-go" type="submit">Add</button>

I am not able to post the javascript linked with it. This forum is showing one error.

The save part of the script is shown below:

[/code]

The final result is stored in the variable strValues i think. But i cannot find a way as to get the result into a variable outside the script so that the i can add the data obtained into the database. Please help..

01-10-2011, 11:04 PM

[eluser]Roy MJ[/eluser]
var strValues = "";
var boxLength = document.choiceForm.destination.length;
var count = 0;
if (boxLength != 0) {
for (i = 0; i < boxLength; i++) {
if (count == 0) {
strValues = document.choiceForm.destination.options[i].value;
}
else {
strValues = strValues + "," + document.choiceForm.destination.options[i].value;
[removed](strValues);
}
count++;
}
}
alert("Here are the values you've selected:\r\n" + strValues);

01-10-2011, 11:15 PM

[eluser]Atharva[/eluser]
If you want to store the value into database, you will need to use Ajax. Use jQuery. jQuery Ajax

01-10-2011, 11:17 PM

[eluser]Roy MJ[/eluser]
Can u please tell me something that i can do with the script.. Im not familiar with ajax or javascript. I have used javascripts for like lightbox and stuff.

01-10-2011, 11:21 PM

[eluser]Atharva[/eluser]
Another way is to store the JavaScript variables in hidden fields, and submit the form in javascript, so that they can be accessed via $_GET or $_POST in a php script.

01-10-2011, 11:26 PM

[eluser]Roy MJ[/eluser]
Will this work?

<input type='hidden' name='des' value='strValues'>

01-10-2011, 11:31 PM

[eluser]Atharva[/eluser]
[quote author="Roy MJ" date="1294745210"]Will this work?

<input type='hidden' id='des' name='des' value='strValues'>[/quote]

Nope

Code:
[removed]

document.getElementById('des').value = strValues;

[removed]

Note additional attribute id='des'

01-10-2011, 11:44 PM

[eluser]Roy MJ[/eluser]
Im sorry for disturbing so much, but im still only learning my way with these scripts.

I have tried including the above script to the javascript and tried calling using $_GET['des'];

But now its showing error:

A PHP Error was encountered

Severity: Notice

Message: Undefined index: des

Filename: admin/tour_packages.php

Line Number: 27
A PHP Error was encountered

Severity: Warning

Message: Cannot modify header information - headers already sent by (output started at /home/edatour/public_html/soumya/system/libraries/Exceptions.php:164)

Filename: helpers/url_helper.php

Line Number: 588

01-10-2011, 11:55 PM

[eluser]Atharva[/eluser]
I don't see <form> in your view so can't tell which method you are using. If it is post, then you can access it by

Code:
$this->input->post('des')

If it is get then you can have your function defined as

Code:
function xyz($des){}

so that you can access 'des' as a uri segment.

P.S : Though I mentioned $_GET in my earlier post, it is not allowed in CI and it gets filtered out.

01-11-2011, 12:20 AM

[eluser]Roy MJ[/eluser]
Thanks a lot for your time. But im still stuck with this. The olny value thats getting added into my database is 0 and nothing else.. Im looking to do something else for the time..