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<?php function uniqueCombination($in, $minLength = 1, $max = 2000) { $count = count($in); $members = pow(2, $count); $return = array(); for($i = 0; $i < $members; $i ++) { $b = sprintf("%0" . $count . "b", $i); $out = array(); for($j = 0; $j < $count; $j ++) { $b{$j} == '1' and $out[] = $in[$j]; } count($out) >= $minLength && count($out) <= $max and $return[] = $out; } return $return; } $numbers = array(1,2,3); $return = uniqueCombination($numbers); sort($return); print_r(array_map(function($v){ return implode(" ", $v); }, $return)); ?>
Output for git.master, git.master_jit
Fatal error: Array and string offset access syntax with curly braces is no longer supported in /in/lec2F on line 11
Process exited with code 255.
Output for rfc.property-hooks
Parse error: syntax error, unexpected token "{" in /in/lec2F on line 11
Process exited with code 255.

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