3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(var_export(true, true)); var_dump(var_export(false, true)); var_dump(print_r(true, true)); var_dump(print_r(false, true)); var_dump(json_encode(true)); var_dump(json_encode(false));
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(4) "true" string(5) "false" string(1) "1" string(0) "" string(4) "true" string(5) "false"
Output for 5.0.0 - 5.1.6
string(4) "true" string(5) "false" string(1) "1" string(0) "" Fatal error: Call to undefined function json_encode() in /in/p4WF9 on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
string(4) "true" string(5) "false" string(1) "1" string(0) "" Fatal error: Call to undefined function: json_encode() in /in/p4WF9 on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
string(4) "true" string(5) "false" string(1) "1" string(0) "" Fatal error: Call to undefined function: json_encode() in /in/p4WF9 on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
string(4) "true" string(5) "false" string(1) "1" string(0) "" Fatal error: Call to undefined function: json_encode() in /in/p4WF9 on line 7