PHP code example of toobo / pipepie

    
        
<?php
require_once('vendor/autoload.php');

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

    

toobo / pipepie example snippets

use Toobo\PipePie\Pipeline;

$pipeline = (new Pipeline())
    ->pipe(function($carry) {
       return $carry.'B';
    })->pipe(function($carry) {
       return $carry.'C';
    });
    
echo $pipeline->applyTo('A'); // 'ABC'

use Toobo\PipePie\Pipeline;

$pipeline = (new Pipeline())
    ->pipe(function($carry, $initial) {
       return $initial % 2 === 0 ? $carry * 2 : $carry;
    })->pipe(function($carry, $initial) {
       return $initial % 2 === 0 ? $carry * 2 : $carry;
    });
    
echo $pipeline->applyTo(2); // 8
echo $pipeline->applyTo(1); // 1

use Toobo\PipePie\Pipeline;
use Toobo\PipePie\DTO;

$pipeline = (new Pipeline())
    ->pipe(function($carry, $initial, DTO $dto) {
       $dto['ai'] = new ArrayIterator();
       $dto['ai']->append('bar');
    })->pipe(function($carry, $initial, DTO $dto) {
       $dto['ai']->append('baz');
    })->pipe(function($carry, $initial, DTO $dto) {
       return $carry.implode(',' $dto['ai']->getArrayCopy());
    });
    
echo $pipeline->applyTo('foo,'); // 'foo,bar,baz'

use Toobo\PipePie\Pipeline;
use Toobo\PipePie\DTO;

// Context here is a string, but can be anything
$pipeline = (new Pipeline('I am the context '))
    ->pipe(function($carry, $initial, DTO $dto) {
       return $carry.$dto->context();
    })->pipe(function($carry, $initial, DTO $dto) {
       return $carry.$dto->context();
    });
    
echo $pipeline->applyTo('foo '); // 'foo I am the context I am the context'

use Toobo\PipePie\Pipeline;
use Toobo\PipePie\DTO;

$pipeline = (new Pipeline('Call: '))
    ->pipe(function($carry, $initial, DTO $dto) {
       $dto['random'] = rand(1, 100);
       return $carry;
    })->pipe(function($carry, $initial, DTO $dto) {
       return $carry.$dto->context().$dto['random'];
    });
    
echo $pipeline->applyTo('First '); // 'First Call: 5'
echo $pipeline->applyTo('Second '); // 'Second Call: 72'

use Toobo\PipePie\Pipeline;

$pipeline = (new Pipeline(null, Pipeline::TO_ARRAY))
    ->pipe(function ($carry) {
        return $carry;
    })->pipe(function (array $carry) { // type casting flag ensures $carry is an array
        $carry[] = 'bar';
        return $carry;
    });

return $pipeline->applyTo('foo'); // ['foo', 'bar']

use Toobo\PipePie\Pipeline;

$pipeline = (new Pipeline(null, Pipeline::TO_ARRAY, true))
    ->pipe(function (array $carry) {  // Even 1st callback receives type-casted value
        return $carry;
    });

return $pipeline->applyTo('foo'); // ['foo']

use Toobo\PipePie\Pipeline;

/**
 * Ensures returned value is an array of unique integers
 */
$caster = function ($data) { 
    if (! is_array($data)) {
        $data = (array) $data;
    }
    return array_values(array_unique(array_filter($data, 'is_int')));
};

$pipeline = (new Pipeline(null, $caster))
    ->pipe(function (array $carry) {
        return array_merge($carry, ['a', 1, 'b', 2, false, 3]);
    })->pipe(function (array $carry) {
        return array_merge($carry, ['foo', 4, 'bar', 3, false, 2, 1]);
    });

return $pipeline->applyTo(['foo' => 0, 'bar' => 'baz'])); // [0, 1, 2, 3, 4]

use Toobo\PipePie\Pipeline;

$pipeline = (new Pipeline())->pipe(
    function ($carry, $initial, $dto, $foo, $bar) { // 1st arg is the callback
        return $carry.$foo.', '.$bar;
    },
    ['"foo"', '"bar"']            // 2nd arg is the additional arguments array
);

echo $pipeline->applyTo('Args: '); // 'Args: "foo", "bar"'

use Toobo\PipePie\Pipeline;

$child1 = (new Pipeline())->pipe(function ($carry) {
        return $carry.'Inner 1/1, ';
    })->pipe(function ($carry) {
        return $carry.'Inner 1/2, ';
    });
    
$child2 = (new Pipeline())->pipe(function ($carry) {
        return $carry.'Inner 2/1, ';
    })->pipe(function ($carry) {
        return $carry.'Inner 2/2.';
    });
    
$parent = (new Pipeline())
    ->pipe($child1)
    ->pipe(function ($carry) {
        return $carry.'Parent, ';
    });
    ->pipe($child2);

echo $pipeline->applyTo('Called: ');
// 'Called: Inner 1/1, Inner 1/2, Parent, Inner 2/1, Inner 2/2.'

use Toobo\PipePie\Pipeline;

$pipeline = (new Pipeline('I am the context'))
    ->pipe(function ($carry, $initial, $dto) {
        $dto['callback'] = 'First Callback';
        $dto['random'] = rand(1, 100);
        return $carry;
    });

$pipeline->applyTo('One');
$pipeline->applyTo('Two');
$pipeline->applyTo('Three');

return $pipeline->info();
/*
[
    'context' => 'I am the context'
    [
        'input'       => 'Three',
        'transported' => [
            'callback' => 'First Callback',
            'random'   => 72
        ],
        'started_at' => 1423689928.5802
    ],
    [
        'input'       => 'Two',
        'transported' => [
            'callback' => 'First Callback',
            'random'   => 21
        ],
        'started_at' => 1423689928.5801
    ],
    [
        'input'       => 'One',
        'transported' => [
            'callback' => 'First Callback',
            'random'   => 89
        ],
        'started_at' => 1423689928.5800
    ],
)
*/