3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $result = array( "\xb0\x00", "\x43\x00", "\x00\x00" ); $jsontest = json_encode( $result, JSON_UNESCAPED_UNICODE ); echo "jsontest is: $jsontest"; ?>
Output for 5.5.0 - 7.1.0
jsontest is:
Output for 5.4.0 - 5.4.45
jsontest is: [null,"C\u0000","\u0000\u0000"]
Output for 5.3.0 - 5.3.29
Notice: Use of undefined constant JSON_UNESCAPED_UNICODE - assumed 'JSON_UNESCAPED_UNICODE' in /in/iBNGY on line 3 Warning: json_encode() expects parameter 2 to be long, string given in /in/iBNGY on line 3 jsontest is:
Output for 5.2.0 - 5.2.17
Notice: Use of undefined constant JSON_UNESCAPED_UNICODE - assumed 'JSON_UNESCAPED_UNICODE' in /in/iBNGY on line 3 Warning: json_encode() expects exactly 1 parameter, 2 given in /in/iBNGY on line 3 jsontest is:
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/iBNGY 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/iBNGY 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/iBNGY 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/iBNGY on line 3