PHP EXPERT: php://input -- Content-Type: application/octet-stream

DONT BID BEFORE U READ PROJECT COZ I WILL NOT ACCEPT UR BID: i have a device (time attendance) that send POST data to my server every 10 seconds. ( i cant control or change the way it send data) so in my server in php file i run print_r($_POST) and it is empty, i can see the data only when i run this $content = file_get_contents('php://input'); var_dump($content); //or i can use print_r($content); i save those to a file and result are some json and BINARY DATA (CHECK atachment) so how can i decode that binary or what can i do to decode the json and also see what data is send in binary? p.s HTTP request Content-type is: [Content-Type] => application/octet-stream, application/octet-stream THIS DIDNT WORK json_decode($content,true); coz its not all data json . PLEASE BID JUST IF U KNOW HOW TO SOLVE IT, DONT WASTE MY TIME , so only bid if u really know what this is and how to soleve. u have in atachment the php file which i recive to get data and logs file where data is saved