1. Go to this page and download the library: Download elminson/permutations library. Choose the download type require.
2. Extract the ZIP file and open the index.php.
3. Add this code to the index.php.
<?phprequire_once('vendor/autoload.php');
/* Start to develop here. Best regards https://php-download.com/ */
elminson / permutations example snippets
// Customizable features for a smartphone
$colors = ['Black', 'White'];
$storageCapacities = ['64GB', '128GB'];
// Generating variations using Permutations::generate
$actualVariations = Permutations::generate([$colors, $storageCapacities]);