How to get checkbox array values

I am using the following to grab form submit values after submission via

$submission = WPCF7_Submission::get_instance();
$posted_data = $submission->get_posted_data();

However, the following is not working for me:

$ArrP = array();
$ArrP = $posted_data['checkbox-564'];
if($ArrP[0] == 1){
		    $programme['Option 1'] == "on";
		}

if($ArrP[1] == 1){
		    $programme['Option 2'] == "on";
		}

https://ww.wp.xz.cn/plugins/contact-form-7/