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<?php class X { const a = __FILE__; const b = __DIR__; } echo X::__DIR__;
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Undefined constant X::__DIR__ in /in/JX9fN:6 Stack trace: #0 {main} thrown in /in/JX9fN on line 6
Process exited with code 255.

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