php - how to pass value of varibles in json

Question

foreach ($ordersList as $object) {

    $entityid = $object->entity_id; //how to give this $entityid with in json

    $json='{
    "orderNo":$entityid,          //here i want to assign the value of $entityid
    "customerCode": $customerid,
    "dateOrdered": "08-07-2015",
    "warehouseId" : ,
    "orderLineList":
    [

    "productId": 1000002,
    "qty": 6,
    "price": 10
    ]
    }';
}

$data = json_decode($json);
$data_string=  json_encode($data);

Answer 1

Don't write JSON strings by hand.

$data = [
    "orderNo" => $entityid, //here i want to assign the value of $entityid
    "customerCode" =>  $customerid,
    "dateOrdered" => "08-07-2015",
    "warehouseId" => null ,
    "orderLineList" => [
        "productId": 1000002,
        "qty": 6,
        "price": 10,
    ],
];

$json = json_encode($data);

json_decode() would give an error for this:

{"orderLineList": [ "productId": 1000002 ]}