PHP code example of yuyat / piper

1. Go to this page and download the library: Download yuyat/piper 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/ */

yuyat / piper example snippets



use yuyat\Piper;

use function iter\fn\operator;
use function iter\range;

$result = Piper::from(range(1, 10))
    ->pipe('iter\map', [operator('*', 2)])
    ->pipe(function ($iter) { return reduce(operator('+'), $iter, 0); })
    ->get();

echo $result, PHP_EOL;
// => 110



use yuyat\Piper;

use function iter\fn\operator;
use function iter\range;
use function iter\map;
use function iter\reduce;

class IterPiper extends Piper
{
    public function map($fn)
    {
        return new static(map($fn, $this->get()));
    }

    public function reduce($fn, $initial = null)
    {
        return new static(reduce($fn, $this->get(), $initial));
    }
}

$result = IterPiper::from(range(1, 10))
    ->map(operator('*', 2))
    ->reduce(operator('+'), 0)
    ->get();

echo $result, PHP_EOL;
// => 110