PHP code example of jeremeamia / iter8

1. Go to this page and download the library: Download jeremeamia/iter8 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/ */

jeremeamia / iter8 example snippets


const PEOPLE = [
    ['name' => 'Abby',  'age' => 19],
    ['name' => 'Benny', 'age' => 21],
    ['name' => 'Cally', 'age' => 22],
    ['name' => 'Danny', 'age' => 24],
    ['name' => 'Danny', 'age' => 24],
    ['name' => 'Eddy',  'age' => 18],
];


$iter = Gen::from(PEOPLE);
$iter = Iter::filter($iter, Func::compose([
    Func::index('age'),
    Func::operator('>=', 20),
]));
$iter = Iter::map($iter, Func::index('name'));
$iter = Iter::debounce($iter);

Iter::print($iter);
#> ['Benny', 'Cally', 'Danny']


$iter = Iter::pipe(Gen::from(PEOPLE), [
    Pipe::filter(Func::compose([
        Func::index('age'),
        Func::operator('>=', 20),
    ])),
    Pipe::map(Func::index('name')),
    Pipe::debounce(),
]);

Iter::print($iter);
#> ['Benny', 'Cally', 'Danny']


$iter = Iter::pipe(Gen::from(PEOPLE), [
    Pipe::pluck('age'),
    Pipe::reduce('max'),
    Pipe::switch(function (int $maxAge) {
        return Gen::range(1, $maxAge);
    }),
]);

Iter::print($iter);
#> [1, 2, 3, ..., 22, 23, 24]


$collection = Collection::from(PEOPLE)
    ->filter(Func::compose([
        Func::index('age'),
        Func::operator('>=', 20),
    ]))
    ->map(Func::index('name'))
    ->debounce();

$collection->print();
#> ['Benny', 'Cally', 'Danny']


$items = Gen::defer(function () use ($apiClient) {
    $apiResult = $apiClient->getItems();
    foreach ($apiResult['items'] as $data) {
        yield Models\Item::fromArray($data);
    }
});

// ...
// First iteration
foreach ($items as $item) { /* ... */ }
// ...
// Another iteration
foreach ($items as $item) { /* ... */ }


$apiResult = $apiClient->getItems();
$items = Iter::map($apiResult['items'], function (array $data) {
    return Models\Item::fromArray($data);
});
$items = Iter::rewindable($items);

// ...
// First iteration
foreach ($items as $item) { /* ... */ }
// ...
// Another iteration
foreach ($items as $item) { /* ... */ }