へ〜、な感じなので。 元ネタ http://d.hatena.ne.jp/ajiyoshi/20120912/1347434440 [ 'test' => 5 ]]; var_dump(json_encode($awk)); $awk = []; $awk['key'] = array(); var_dump(json_encode($awk)); $awk = []; $awk['key'] = new arrayObject(); var_d…