3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php header("Content-Type: application/json; charset=utf-8"); echo json_encode(array("äöü"."-".utf8_encode("äöü")."-".utf8_encode(utf8_encode("äöü"))."-".mb_convert_encoding("äöü", 'UTF-8')."-".mb_convert_encoding(utf8_encode("äöü"), 'UTF-8')));
based on A70dL
Output for 5.6.0 - 5.6.28, hhvm-3.10.0 - 3.14.4, 7.0.0 - 7.1.0
["\u00e4\u00f6\u00fc-\u00c3\u00a4\u00c3\u00b6\u00c3\u00bc-\u00c3\u0083\u00c2\u00a4\u00c3\u0083\u00c2\u00b6\u00c3\u0083\u00c2\u00bc-\u00e4\u00f6\u00fc-\u00c3\u00a4\u00c3\u00b6\u00c3\u00bc"]
Output for 5.2.0 - 5.5.38
["\u00e4\u00f6\u00fc-\u00c3\u00a4\u00c3\u00b6\u00c3\u00bc-\u00c3\u0083\u00c2\u00a4\u00c3\u0083\u00c2\u00b6\u00c3\u0083\u00c2\u00bc-\u00c3\u00a4\u00c3\u00b6\u00c3\u00bc-\u00c3\u0083\u00c2\u00a4\u00c3\u0083\u00c2\u00b6\u00c3\u0083\u00c2\u00bc"]
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/qBEa3 on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/qBEa3 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/qBEa3 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/qBEa3 on line 3