Filtering JSON in php by greater than current date

Question

How to filter the json response by date greater than today

My JSON look like is:

{
    "responseData": [
        {
            "totalValue": 0.0,
            "active": "Oct 16, 2019 11:16:23 AM",
            "expired": "Mar 28, 2020 3:15:58 PM"
        },
        {
            "totalValue": 0.0,
            "active": "Oct 16, 2019 11:16:23 AM",
            "expired": "Mar 28, 2020 3:15:58 PM"
        },
        {
            "totalValue": 0,
            "active": "Jun 25, 2019 6:34:59 PM",
            "expired": "Oct 16, 2019 11:10:32 AM",
    }
    ],
    "responseMessage": "success",
    "responseCode": 0
}

and the php script to filter:

date_default_timezone_set('UTC');


$date1 = date('M d, Y H:i:s A'); //Oct 16, 2019 11:16:23 AM

    $json = json_decode($mybalance, true);
    usort($json['responseObject'], function($date1, $b) { return $date1 > $b['expired']; } );
    $mybalance2 = json_encode($json);

    header('Content-Type: application/json;charset=utf-8');

    echo $mybalance2;

But the output still display all data instead of filtering, my expected output is:

{
    "responseData": [
        {
            "totalValue": 0.0,
            "active": "Oct 16, 2019 11:16:23 AM",
            "expired": "Mar 28, 2020 3:15:58 PM"
        },
        {
            "totalValue": 0.0,
            "active": "Oct 16, 2019 11:16:23 AM",
            "expired": "Mar 28, 2020 3:15:58 PM"
        }
    ],
    "responseMessage": "success",
    "responseCode": 0
}

Has tried finding the solutions over google but not working :(

Answer 1

You are not actually filtering data, as usort() will Sort array by values using a user-defined comparison function.(what you defined already)

Do:

date_default_timezone_set('UTC');

$date1 = 'Oct 16, 2019 11:16:23 AM';

$json = json_decode($mybalance, true);

foreach($json['responseData'] as $key=>$value){

    if(strtotime($value['expired']) < strtotime(date('M d, Y H:i:s A'))){

        unset($json['responseData'][$key]);

    }
}

Output:- https://3v4l.org/AAqgJ

Note:- you can use strtotime(date('Ymd H:i:s')) instead of strtotime(date('M d, YH:i:s A')) .

Sample output : https://3v4l.org/Ba7H9