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run code in 500+ PHP versions simultaneously
<?php const FOO = new stdClass(); var_dump(FOO); $foo = FOO; $foo->bar = 'bar'; var_dump(FOO);
Output for 8.0.1 - 8.0.30
Fatal error: Constant expression contains invalid operations in /in/s7rHE on line 3
Process exited with code 255.
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
object(stdClass)#1 (0) { } object(stdClass)#1 (1) { ["bar"]=> string(3) "bar" }

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30.42 ms | 1140 KiB | 9 Q