API Foreach导致无效参数

Question

Okay, so I am trying to use a restful api. And when I put my results into a foreach loop, I get that the variable in that foreach is undefined. What do I need to do instead?

My results are coded as $modules and when I var_dump this, I receive the following array:

string(42) "array ( 1 => 'Emails', 2 => 'Pages', )"

Now, When I try to place this in my foreach loop like so:

<?php foreach($modules as $module => $name): ?>
    <?php echo $module; ?>
<?php endforeach; ?>

I get this error:

 Invalid argument supplied for foreach()

Btw, I am using codeigniter and the $modules are passed from a controller to a view.

$data['modules'] = codeToGetArray

update

The code that is supposed to be making the array is as follows:

function list_get()
{
    $this->load->model('api/api_m', 'api_m');

    $modules = $this->api_m->list_modules();

    $mods = array();

    foreach($modules as $module)
    {
        $mods[$module->id] = $module->name;
    }

    $modules = $mods;

    if($modules)
    {
        $this->response($modules, 200);
    }
    else
    {
        $this->response(array('error' => 'Couldn\'t fin any modules!'), 404);
    }
}

Answer 1

Function var_dump() should show array not string. It is not foreach fault but somewhere before in code where string is made.