- html_entity_decode: documentation ( source)
<?php
//$json = '{"action":"User","method":"load"}';
//$data = json_decode($json);
//echo $data->{'action'};
//$timestamp = strtotime("2015-06-15 08:01:40+03");
// echo $timestamp;
$ff = "\u041d\u0435+\u0430\u0432\u0442\u043e\u0440\u0438\u0437\u043e\u0432\u0430\u043d";
$i = html_entity_decode($ff);
echo $i;