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<?php $a = null; $b = null; [...$a, ...$b];
Output for git.master_jit, git.master
Fatal error: Uncaught Error: Only arrays and Traversables can be unpacked, null given in /in/DuYHu:6 Stack trace: #0 {main} thrown in /in/DuYHu on line 6
Process exited with code 255.

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