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run code in 500+ PHP versions simultaneously
<?php function foo(#[\SensitiveParameter] string $testParameter): void { bar($testParameter); } function bar(string $testParameter): void { baz($testParameter); } function baz(string $testParameter): void { var_dump(debug_backtrace()); } foo('Hello');

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23.83 ms | 476 KiB | 4 Q