如何在codeigniter MVC中默认加载网页时选中复选框

Html code:

<input type="checkbox" id="my_data"  name="my_data" value="1" <?php echo($my_data == 1 ? 'checked' : ''); ?>/>

Controller code:

$my_data_val = isset($_POST['my_data']) && $_POST['my_data'] ? "1" : "0";

$data["my_data"] = $my_data_val;

i want checked the check box by default while page loading.

Error result : check box value 0 or unchecked while page loading.

In the controller, pass the data as

$data["my_data"] = $my_data_val;
$this->load->view('myfile' , $data);

While in the view:

  <input type="checkbox" id="my_data"  name="my_data" 
  value="1" <?php if($my_data==1) echo "checked='checked' "; ?>
  />

Add follow code to your controller to pass the data

$data["my_data"] = $my_data_val;
$this->load->view('myfile' , $data);

Your view looks OK

do like this

echo form_checkbox('name', 'value', TRUE);//true for checked

put like this if(your condition){//here}