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<?php function g($x=0){return$x?:function($y)use($x){return$x.g($y);};} echo g('al') , PHP_EOL; echo g()('al') , PHP_EOL; echo g()()('al') , PHP_EOL; echo g()()()('al') , PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
al 0al Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 0 passed in /in/d94HT on line 6 and exactly 1 expected in /in/d94HT:2 Stack trace: #0 /in/d94HT(6): {closure}() #1 {main} thrown in /in/d94HT on line 2
Process exited with code 255.

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