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<?php $test = '"\ud834"'; $res = json_decode($test, true); if (json_last_error() != JSON_ERROR_NONE) { die(json_last_error_msg()); } var_dump($res);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Single unpaired UTF-16 surrogate in unicode escape
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.38
string(3) "�"
preferences:
256.09 ms | 402 KiB | 321 Q