HTML <input> 除非使用codeigniter的input_form，否则无法将值传递给URL

Question

i create form search using codeigniter's form_helper

 <?php echo form_open(site_url( 'lab/hasil_rawat_jalan'), array( 'method'=>'get')) ?> <div class="form-group"> <label class="sr-only" for="value">Search</label> <?php echo form_input( 'value', $this->input->get('value'), 'type="text" class="form-control" id="value" placeholder="Search..."') ?> </div> <input class="btn btn-default btn-sm" type="submit" value="Go"> </form> 

the problem is if i change

<?php echo form_input( 'value', $this->input->get('value'), 'type="text" class="form-control" id="value" placeholder="Search..."') ?>

into this(which mean normal input tag)

<input type="text" class="form-control" id="value" placeholder="Search..." value="<?php echo $this->input->get('value');?>">

I can not get any value in my url, do I miss something here?

if you do not understand my question please ask. thanks^^

Answer 1

If you want the value, please add name attribute.

<input name="value" type="text" class="form-control" id="value" placeholder="Search..." value="<?php echo $this->input->get('value');?>" >
       ^          ^

In code igniter, first parameter in the name of the text box.

<?php echo form_input( 'value', $this->input->get('value'), 'type="text" class="form-control" id="value" placeholder="Search..."') ?>
                       ^      ^

Answer 2

Here means that create and input text with value name with $this->input->get('value') this value:

 form_input( 'value', $this->input->get('value')...)

But in your case value become attribute, not the name of name attribute :

<input type="text" class="form-control" id="value" placeholder="Search..." value="<?php echo $this->input->get('value');?>">