- json_decode: documentation ( source)
- print_r: documentation ( source)
- array_merge: documentation ( source)
- json_encode: documentation ( source)
<?php
$json1 = '[{"date":"10"},{"comment":"some comment"},{"user":"john"}]';
$json2 = '[{"date":"11"},{"comment":"another quote"},{"comment":"jim"}]';
$array1 = json_decode($json1,true);
$array2 = json_decode($json2,true);
$final = array_merge($array1, $array2);
echo json_encode($final);
print_r($final);