3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array('<foo>',"'bar'",'"baz"','&blong&', "\xc3\xa9"); echo "x", json_encode($a), "\n";
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
x["<foo>","'bar'","\"baz\"","&blong&","\u00e9"]
Output for 5.0.0 - 5.1.6
x Fatal error: Call to undefined function json_encode() in /in/viu61 on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
x Fatal error: Call to undefined function: json_encode() in /in/viu61 on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
x Fatal error: Call to undefined function: json_encode() in /in/viu61 on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
x Fatal error: Call to undefined function: json_encode() in /in/viu61 on line 4