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<?php function findFamily($n) { $numbers = str_split("$n"); $combos = array(); $count = count($numbers); for($i = 0; $i < $count; $i++) { $baseNumber = $numbers[$i]; $tempArray = $numbers; unset($tempArray[$i]); $tempArray = array_filter($tempArray); for($i = 0; $i < count($tempArray); $i++) { $combos[] = $baseNumber.$tempArray[$i].$tempArray[$i + 1]; $value = $tempArray[$i]; unset($tempArray[$i]); $numbers[] = $value; } } return $combos; } print_r(FindFamily(123));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined array key 0 in /in/PG6AY on line 12 Warning: Undefined array key 0 in /in/PG6AY on line 13 Array ( [0] => 12 [1] => 123 )

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