Получить символ Юникода с curl в PHP

Я попытался получить URL с завитом. Возвращаемое значение содержит символ Юникода. curl конвертировать в \ u для символа Unicode. Как получить символ Юникода с завитком?

Это мой код

<?php $ch = curl_init(); // set URL and other appropriate options curl_setopt($ch, CURLOPT_URL, "http://www.ornagai.com/index.php/api/word/q/test/format/json"); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $return=curl_exec($ch); echo $return; ?> 

Возврат json следующий

 [{"word":"test","state":"n","def":"\u1005\u102c\u1031\u1019\u1038\u1015\u1032\u103c\u104b \u1005\u1005\u1039\u1031\u1006\u1038\u103b\u1001\u1004\u1039\u1038\u104b \u1005\u1005\u1039\u1031\u1006\u1038\u1019\u1088\u104b \u1031\u1006\u1038\u1005\u1005\u1039\u103b\u1001\u1004\u1039\u1038\u104b \u1005\u1019\u1039\u1038\u101e\u1015\u1039\u103b\u1001\u1004\u1039\u1038\u104b"},{"word":"test","state":"v","def":"\u1005\u1005\u1039\r"},{"word":"test case","state":"n","def":"\u1031\u1014\u102c\u1004\u1039\u1039\u103b\u1016\u1010\u1039\u1011\u1036\u102f\u1038\u103b\u1016\u1005\u1039\u1019\u100a\u1039\u1037\u1005\u1036\u1014\u1019\u1030\u1014\u102c\u103b\u1015\u1021\u1019\u1088\u104b"},{"word":"test drive","state":"n","def":"\u1005\u1019\u1039\u1038\u101e\u1015\u1039\u1031\u1019\u102c\u1004\u1039\u1038\u108f\u103d\u1004\u1039\u103b\u1001\u1004\u1039\u1038\u104b \u1005\u1019\u1039\u1038\u101e\u1015\u1039\u1031\u1019\u102c\u1004\u1039\u1038\u101e\u100a\u1039\u104b"},{"word":"test match","state":"n","def":"\u1001\u101b\u1005\u1039\u1000\u1000\u1039\u104a\u101b\u1010\u1039\u1062\u1018\u102e\u108f\u103d\u1005\u1039\u108f\u102d\u102f\u1004\u1039\u1004\u1036\u1021\u101e\u1004\u1039\u1038\u1019\u103a\u102c\u1038\u104f\u101c\u1000\u1039\u101b\u100a\u1039\u1005\u1019\u1039\u1038\u1015\u1032\u103c\u104b"},{"word":"test pilot","state":"n","def":"\u1031\u101c\u101a\u102c\u1009\u1039\u1015\u1036\u102f\u1005\u1036\u101e\u1005\u1039\u1000\u102d\u102f\u1005\u1019\u1039\u1038\u101e\u1015\u1039\u1031\u1019\u102c\u1004\u1039\u1038\u108f\u103d\u1004\u1039\u101e\u100a\u1039\u1037\u1031\u101c\u101a\u102c\u1009\u1039\u1019\u1089\u1038\u104b"},{"word":"test the waters","state":"idm","def":"\u1031\u101e\u103c\u1038\u1010\u102d\u102f\u1038\u1005\u1019\u1039\u1038\u101e\u100a\u1039\u104b"},{"word":"test-tube","state":"n","def":"\u1005\u1019\u1039\u1038\u101e\u1015\u1039\u1016\u1014\u1039\u103b\u1015\u103c\u1014\u1039\u104b \u1013\u102c\u1010\u1039\u1001\u1032\u103c\u1001\u1014\u1039\u1038\u1016\u1014\u1039\u103b\u1015\u103c\u1014\u1039\u104b"},{"word":"test-tube baby","state":"n","def":"\u1016\u1014\u1039\u103b\u1015\u103c\u1014\u1039\u101e\u1031\u108f\u1076\u101e\u102c\u1038\u104b"},{"word":"testable","state":"adj","def":"\u1005\u1019\u1039\u1038\u101e\u1015\u1039\u1005\u1005\u1039\u1031\u1006\u1038\u1001\u1036\u108f\u102d\u102f\u1004\u1039\u1031\u101e\u102c\u104b"}]