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<?php function f($current_day, $delay) { return ((($current_day+$delay)%5)+1); } for($i = 1; $i < 8; $i++) { printf("f(%d, 1) => %d\n", $i, f($i, 1)); }
Output for git.master, git.master_jit, rfc.property-hooks
f(1, 1) => 3 f(2, 1) => 4 f(3, 1) => 5 f(4, 1) => 1 f(5, 1) => 2 f(6, 1) => 3 f(7, 1) => 4

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