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<?php function f($f) { $f(['x' => 1]); echo $x; } f('extract');
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Cannot call extract() dynamically in /in/nLccg:4 Stack trace: #0 /in/nLccg(4): extract(Array) #1 /in/nLccg(8): f('extract') #2 {main} thrown in /in/nLccg on line 4
Process exited with code 255.

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