Validating multiple inputs (File Upload Library)

How can I validate two inputs using the CodeIgniter's File Upload Library?

I have two inputs

Code:

<input type="file" name="cover">
<input type="file" name="images[]" multiple>

I did try this one

PHP Code:

if( ! $this->upload->do_upload('cover') || ! $this->upload->do_upload('images[]') ) {
    die($this->upload->display_errors());

} else {
    var_dump($this->upload->data('file_name'));die();

} 


...but it always displays "You did not select a file to upload."

I recommend taking a look at Avenirer's solution:
http://avenir.ro/my_upload-extension-all...e-uploads/

Basic looping to achieve multiple uploads might look something like this:

PHP Code:

$this->load->library('upload');

$files = $_FILES;
$upload_count = count( $_FILES['userfile']['name'] );
for( $i = 0; $i < $upload_count; $i++ )
{
    $_FILES['userfile'] = [
        'name'     => $files['userfile']['name'][$i],
        'type'     => $files['userfile']['type'][$i],
        'tmp_name' => $files['userfile']['tmp_name'][$i],
        'error'    => $files['userfile']['error'][$i],
        'size'     => $files['userfile']['size'][$i]
    ];

    $init_config['file_name'] = str_replace( '.', '', microtime(TRUE) ) . '.jpg';

    $this->upload->initialize( $init_config );
    
    if( $this->upload->do_upload() )
    {
        //...
    }
} 


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