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run code in 300+ PHP versions simultaneously
<?php var_dump(json_decode(null)); var_dump(json_last_error());
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
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)

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304.71 ms | 402 KiB | 383 Q