php-Framework-PHP Array Traversal SKU attribute value pairing

    $skuattr = Array    (        '7' => Array            (                '6' => '22x33',                '9' => '44x55',            ),        '8' => Array            (                '12' => '大小号'            ),        '9' => Array            (                '8' => '金属质',                '13' => '塑料',            ),        '16' => Array            (                '14' => '圆形'            )    );

Get 4 values
7:6;8:12;9:8;16:14;
7:9;8:12;9:8;16:14
7:6;8:12;9:13;16:14
7:9;8:12;9:13;16:14
Because the key value is dynamic, it takes an array traversal algorithm to get the result, the great God Help

Reply content:

    $skuattr = Array    (        '7' => Array            (                '6' => '22x33',                '9' => '44x55',            ),        '8' => Array            (                '12' => '大小号'            ),        '9' => Array            (                '8' => '金属质',                '13' => '塑料',            ),        '16' => Array            (                '14' => '圆形'            )    );

Get 4 values
7:6;8:12;9:8;16:14;
7:9;8:12;9:8;16:14
7:6;8:12;9:13;16:14
7:9;8:12;9:13;16:14
Because the key value is dynamic, it takes an array traversal algorithm to get the result, the great God Help

The principle is to ask the Cartesian product to write a simple example

  php   function Combinedika ($data) {$result = array ();    foreach (Array_shift ($data) as $k = + $item) {$result [] = Array ($k + = $item);        } foreach ($data as $k = + $v) {$result 2 = [];                foreach ($result as $k 1=> $item 1) {foreach ($v as $k 2=> $item 2) {$temp = $item 1;                $temp [$k 2] = $item 2;            $result 2[] = $temp;    }} $result = $result 2; } return $result;}    $skuattr = Array (' 7 ' = = Array (' 6 ' = ' = ' 22x33 ', ' 9 ' = ' 44x55 ',), ' 8 ' = = array (' + ' = ' size '), ' 9 ' = = Array (' 8 ' = ' metal ', ' ' + ' = ' plastic '), ' 16 ' = = Array (' + ' = ' round '); $a = Combinedika ($skuattr);p rint_r ($a);  

phpArray(    [0] => Array        (            [6] => 22x33            [12] => 大小号            [8] => 金属质            [14] => 圆形        )    [1] => Array        (            [6] => 22x33            [12] => 大小号            [13] => 塑料            [14] => 圆形        )    [2] => Array        (            [9] => 44x55            [12] => 大小号            [8] => 金属质            [14] => 圆形        )    [3] => Array        (            [9] => 44x55            [12] => 大小号            [13] => 塑料            [14] => 圆形        ))

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