3v4l.org

run code in 500+ PHP versions simultaneously
<?php var_dump(json_decode(null)); var_dump(json_last_error());
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Deprecated: json_decode(): Passing null to parameter #1 ($json) of type string is deprecated in /in/buM83 on line 3 NULL int(4)
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
NULL int(4)
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
NULL int(0)

preferences:
116.08 ms | 2311 KiB | 4 Q