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<?php $count = 0; function p($x, &$count) { $count++; if ($x<= 2) { return 2; } else { return p($x-1)+p($x-2) -1; } } var_dump(p(p(5, $count), $count)); echo $count;
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught ArgumentCountError: Too few arguments to function p(), 1 passed in /in/HXlmM on line 10 and exactly 2 expected in /in/HXlmM:5 Stack trace: #0 /in/HXlmM(10): p(4) #1 /in/HXlmM(14): p(5, 1) #2 {main} thrown in /in/HXlmM on line 5
Process exited with code 255.

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