<?php $json = '{"2":[ {"title":"english title","link":"english url"}, {"title":"","link":""}], "1":[ {"title":"french title","link":"french url"}, {"title":"","link":""}]}'; $links = json_decode($json, true); array_walk($links, function (&$array) { $array = array_filter($array, function ($obj) { return $obj['title'] != '' || $obj['link'] != ''; }); }); print_r($links);
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