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run code in 300+ PHP versions simultaneously
<?php var_dump(null?->foo());
Output for 8.0.0, 8.1.7 - 8.1.27, 8.2.10 - 8.2.17, 8.3.0 - 8.3.4
NULL
Output for 7.3.0 - 7.3.25, 7.4.0 - 7.4.13
Parse error: syntax error, unexpected '->' (T_OBJECT_OPERATOR) in /in/IF9qe on line 3
Process exited with code 255.

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