permutasi multi array, Php

permutasi multi array

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<?php //php 7.2.24

$arrData = [[1,2,3],[4,5,6],[7,8,9]];
        $result = [];
        $sizeIn = sizeof($arrData);
        $size = $sizeIn > 0 ? 1 : 0;
        foreach ($arrData as $array){
            $size = $size * sizeof($array);
        }
        for ($i = 0; $i < $size; $i ++) {
            $result[$i] = [];
            for ($j = 0; $j < $sizeIn; $j++){
                array_push($result[$i], current($arrData[$j]));
            }
            for ($j = ($sizeIn-1); $j >= 0; $j--){
                // pindah ke next element tiap array yg akan dipush
                if (next($arrData[$j])){
                    // echo(current($arrData[$j]));
                    /* next($arrData[$j]);
                    next($arrData[$j]);
                    // dd($arrData[$j]);
                    dd(current($arrData[$j])); */
                    break;
                }
                elseif (isset($arrData[$j])){
                    reset($arrData[$j]);
                }
            }
        }
        
        var_dump($result);
    
?>

[ + ] Show input
Absolute running time: 0.19 sec, cpu time: 0.07 sec, memory peak: 25 Mb, absolute service time: 0,3 sec

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array(27) {
  [0]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(4)
    [2]=>
    int(7)
  }
  [1]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(4)
    [2]=>
    int(8)
  }
  [2]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(4)
    [2]=>
    int(9)
  }
  [3]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(5)
    [2]=>
    int(7)
  }
  [4]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(5)
    [2]=>
    int(8)
  }
  [5]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(5)
    [2]=>
    int(9)
  }
  [6]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(6)
    [2]=>
    int(7)
  }
  [7]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(6)
    [2]=>
    int(8)
  }
  [8]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(6)
    [2]=>
    int(9)
  }
  [9]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(4)
    [2]=>
    int(7)
  }
  [10]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(4)
    [2]=>
    int(8)
  }
  [11]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(4)
    [2]=>
    int(9)
  }
  [12]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(5)
    [2]=>
    int(7)
  }
  [13]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(5)
    [2]=>
    int(8)
  }
  [14]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(5)
    [2]=>
    int(9)
  }
  [15]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(6)
    [2]=>
    int(7)
  }
  [16]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(6)
    [2]=>
    int(8)
  }
  [17]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(6)
    [2]=>
    int(9)
  }
  [18]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(4)
    [2]=>
    int(7)
  }
  [19]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(4)
    [2]=>
    int(8)
  }
  [20]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(4)
    [2]=>
    int(9)
  }
  [21]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(5)
    [2]=>
    int(7)
  }
  [22]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(5)
    [2]=>
    int(8)
  }
  [23]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(5)
    [2]=>
    int(9)
  }
  [24]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(6)
    [2]=>
    int(7)
  }
  [25]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(6)
    [2]=>
    int(8)
  }
  [26]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(6)
    [2]=>
    int(9)
  }
}

λ

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