how do i pass a view variable to the controller in codeigniter?

问题

My View :-

 <html>
<?= link_tag(base_url().'css/simple.css'); ?>
<body>
<?php $this->load->helper('form'); ?>
<?php $this->load->view('commentform'); ?>
<?php $id=$this->uri->segment(3);?>
<?php echo $id;?>
</body>
</html>

i would like to use the variable $id in my controller.I'm using codeigniter by the way, and am a beginner. I would appreciate any help on this.

回答1:

Well, ideally you wouldn't do it this way. You should assign the variable first in the controller and pass it to the view if you need to use it there.

$data['id'] = $this->uri->segment(3);
$this->load->view('view_file', $data);

$id would then be available in your view as well.

回答2:

you should not call the $id from the View, you should get it at the controller level and pass it to the View.

as Bulk said. you URL will be something like that www.mysite.com/thecontrollername/thefunction/id

for example your controller if home and there is a show_id function in it and your view is call show_id_view.php.

you will have your url like this: www.mysite.com/home/show_id/id

your function in home will read the id"

in your home controller:

function show_id(){
$id=$this->uri->segment(3);
$view_data['id'] = $id;
$this->load->view('show_id_view',$view_data);  
}

in the view (show_id_view):

<?php echo $id ?>

nothing else..

hope this helps.

回答3:

in my view i add link

 <li><a href="<?php echo base_url()?>link/show_id/mantap"> coba </li>

in my link.php controler i add function show_id

function show_id(){
        $id=$this->uri->segment(3);
        $data['coba'] = $id;
        $this->mobile->view('**daftarmember_form**',$data);

in my next view daftarmember_form.html

)

<?php echo $id;?>

they print mantap,

来源：https://stackoverflow.com/questions/6484000/how-do-i-pass-a-view-variable-to-the-controller-in-codeigniter

标签

php

model-view-controller

codeigniter