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run code in 300+ PHP versions simultaneously
<?php function gap($g, $m, $n) { foreach (range($m, $n) as $num) { var_dump($num); var_dump($isPrime = isPrime($num) && isset($firstPrime) && $num - $firstPrime == $g); if ($isPrime = isPrime($num) && isset($firstPrime) && $num - $firstPrime == $g) { return [$firstPrime, $num]; } elseif ($isPrime) { $firstPrime = $num; } } return null; } function isPrime($num) { for ($n = 2; ($div = $num/$n) > $n; $n++) { if (is_int($div)) { return false; } } return true; } gap(2, 100, 110);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.5 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(100) bool(false) int(101) bool(false) int(102) bool(false) int(103) bool(false) int(104) bool(false) int(105) bool(false) int(106) bool(false) int(107) bool(false) int(108) bool(false) int(109) bool(false) int(110) bool(false)
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 int(100) bool(false) int(101) bool(false) int(102) bool(false) int(103) bool(false) int(104) bool(false) int(105) bool(false) int(106) bool(false) int(107) bool(false) int(108) bool(false) int(109) bool(false) int(110) bool(false)
preferences:
192.9 ms | 402 KiB | 194 Q