3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php json_decode(""); echo /*json_last_error_msg(),*/ json_last_error(), "\n"; json_decode("null"); echo /*json_last_error_msg(),*/ json_last_error(), "\n"; json_decode("NULL"); echo /*json_last_error_msg(),*/ json_last_error(), "\n";
based on LbupX
Output for 7.0.0 - 7.2.0
4 0 4
Output for 5.6.7 - 5.6.28
0 0 4
Output for 5.3.0 - 5.5.35
0 0 0
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined function json_last_error() in /in/1uO3P on line 5
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/1uO3P on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/1uO3P on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/1uO3P on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/1uO3P on line 3