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<?php function g($x=0){ return $x?'o':function($y){return g($y);}; } echo g() , PHP_EOL; echo g()() , PHP_EOL; echo g()()() , PHP_EOL; echo g()()()() , PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Object of class Closure could not be converted to string in /in/LkFm7:6 Stack trace: #0 {main} thrown in /in/LkFm7 on line 6
Process exited with code 255.

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