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<?php function repeatInt(int $val, int $min, int $max) { $listLength = $max - $min + 1; $key = ($val % $listLength) % $listLength; if ($key < 0) { $key = $listLength + ($key % $listLength); } return $key; } echo 'Test 2 to 5' . PHP_EOL; echo '---------------------------------' . PHP_EOL; foreach (range(-10, 10) as $i) { echo $i . ' → ' . repeatInt($i, 2, 5) . PHP_EOL; } echo PHP_EOL; echo 'Test 3 to 8' . PHP_EOL; echo '---------------------------------' . PHP_EOL; foreach (range(-10, 10) as $i) { echo $i . ' → ' . repeatInt($i, 3, 8) . PHP_EOL; } echo PHP_EOL; echo 'Test -2 to -4' . PHP_EOL; echo '---------------------------------' . PHP_EOL; foreach (range(-10, 10) as $i) { echo $i . ' → ' . repeatInt($i, -4, -2) . PHP_EOL; } echo PHP_EOL;
based on cJkQI
Output for 7.0.28 - 7.3.0rc3
Test 2 to 5 --------------------------------- -10 → 2 -9 → 3 -8 → 0 -7 → 1 -6 → 2 -5 → 3 -4 → 0 -3 → 1 -2 → 2 -1 → 3 0 → 0 1 → 1 2 → 2 3 → 3 4 → 0 5 → 1 6 → 2 7 → 3 8 → 0 9 → 1 10 → 2 Test 3 to 8 --------------------------------- -10 → 2 -9 → 3 -8 → 4 -7 → 5 -6 → 0 -5 → 1 -4 → 2 -3 → 3 -2 → 4 -1 → 5 0 → 0 1 → 1 2 → 2 3 → 3 4 → 4 5 → 5 6 → 0 7 → 1 8 → 2 9 → 3 10 → 4 Test -2 to -4 --------------------------------- -10 → 2 -9 → 0 -8 → 1 -7 → 2 -6 → 0 -5 → 1 -4 → 2 -3 → 0 -2 → 1 -1 → 2 0 → 0 1 → 1 2 → 2 3 → 0 4 → 1 5 → 2 6 → 0 7 → 1 8 → 2 9 → 0 10 → 1
Output for 5.6.38
Test 2 to 5 --------------------------------- Catchable fatal error: Argument 1 passed to repeatInt() must be an instance of int, integer given, called in /in/Z9QXa on line 19 and defined in /in/Z9QXa on line 2
Process exited with code 255.