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<?php $comp = '[{"date":"2014-10-04","day:"mon"},{"date":"2014-10-03","day":"tue"}]'; $arr1 = array('date' => '2015-10-04' , 'day' => 'wed'); array_push($arr1,json_decode($comp,true)); echo json_encode($comp);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
"[{\"date\":\"2014-10-04\",\"day:\"mon\"},{\"date\":\"2014-10-03\",\"day\":\"tue\"}]"

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