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<?php $i = 0; $o = (function () use($o, $i) { $i++; echo 'o'; if ($i < 10) { $o(); } return $o; })();
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $o in /in/fG88E on line 4 o Fatal error: Uncaught Error: Value of type null is not callable in /in/fG88E:8 Stack trace: #0 /in/fG88E(11): {closure}() #1 {main} thrown in /in/fG88E on line 8
Process exited with code 255.

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