<?php
 
    $data = '{"online":[
        {"user":"1004","status":"Unmonitored"},
        {"user":"1005","status":"Unmonitored"},
        {"user":"1006","status":"Unmonitored"},
        {"user":"2501","status":"Unmonitored"},
        {"user":"2502","status":"Unmonitored"},
        {"user":"2503","status":"Unmonitored"},
        {"user":"2504","status":"Unmonitored"}
    ]}';
 
    $decoded_array = json_decode($data, true); // note the second param
    var_dump($decoded_array['online'][0]['status']); // "Unmonitored"
 
    $decoded_std = json_decode($data);
    var_dump($decoded_std->online[0]->status);

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