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<?php function g($x=0){ return $x?'o':function($y){return 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
o o Fatal error: Uncaught ArgumentCountError: Too few arguments to function {closure}(), 0 passed in /in/DSLEe on line 8 and exactly 1 expected in /in/DSLEe:3 Stack trace: #0 /in/DSLEe(8): {closure}() #1 {main} thrown in /in/DSLEe on line 3
Process exited with code 255.

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