PHP code example of creatortsv / combination-iterator

1. Go to this page and download the library: Download creatortsv/combination-iterator library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

creatortsv / combination-iterator example snippets


use Creatortsv\CombinationIterator\CombinationLengthIterator;
use Creatortsv\CombinationIterator\CombinationIterator;

$codeIterator = new CombinationIterator(
    range(0, 9),
    range(0, 9),
    range(0, 9),
    range(0, 9),
);

// The same as ...

$codeIterator = new CombinationLengthIterator(
    iterator: new CombinationIterator(range(0, 9)),
    length: 4,
);

print_r($codeIterator->count()); // prints 10000 total combinations
print_r($codeIterator->length); // prints 4

foreach ($codeIterator as $combination) {
    // Search matching of [#, #, #, #] symbols pin code ...
    //        for example [3, 5, 9, 7]
}


// ... use

$functions = [
    static fn (int $n) => print_r('first execution for ' . $n),
    static fn (int $n) => print_r('second execution for ' . $n),
];

foreach (new CombinationIterator([1, 2, 3], $functions) as [$number, $function]) {
    $function($number);
}

// prints ...
// first execution for 1
// second execution for 1
// the same for the 2 and 3 ...


$iterator = new CombinationIterator(
    new RecursiveArrayIterator([1, [2, 3], 4]),
    new MyOwnMagicIterator(),
);