Combinations of all sub array elements without repeats

Question

I have \"attributes\" from database. Each attribute has many values. Now I want to mix these values to create unique combinations.

example of input:

Answer 1

you can use this: https://gist.github.com/jwage/11193216

or

use the code bellow:

 $rightItem) {
            $results[] = array_merge((array) $leftItem, (array) $rightItem);
        }
    }
    return $results;
}

$y = $attributes[0];

foreach($attributes as $key => $attrs) {
    if(isset($attributes[$key + 1]) && is_array($attributes[$key + 1])) {
        $y = array_mix($y, $attributes[$key + 1]);
    }
}

var_dump($y);