3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $data = chr(0xd0) . chr(0x95) . chr(0xd1) . chr(0x91); var_dump(json_encode($data));
Output for 5.2.0 - 7.1.0
string(14) ""\u0415\u0451""
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/vlbfX on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/vlbfX on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/vlbfX on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/vlbfX on line 4