fg/cascade

A lightweight API to filter values.

Cascade

A lightweight API to filter values., _(*1)

Installation

composer require fg/cascade

Usage

Filtering a value:, _(*2)

$Cascade = new Cascade\Cascade([
    function($value) {
        return $value + $value;
    },
    function($value) {
        return $value * $value;
    }
]);

echo $Cascade->filter(2); // 16

Filtering a value depending on additionnal arguments:, _(*3)

$Cascade = new Cascade\Cascade([
    function($value, $factor) {
        return $value * $factor;
    }
]);

echo $Cascade->filter(2, 10); // 20

Filtering a value with a filter object:, _(*4)

class SquareFilter {
    public function __invoke($value) {
        return $value * $value;
    }
}

$Cascade = new Cascade\Cascade([
    new SquareFilter()
]);

echo $Cascade->filter(2); // 4

API

// constructor
$Cascade = new Cascade\Cascade();
$Cascade = new Cascade\Cascade($filters);

// accessors for the list of filters
$Cascade->filters();
$Cascade->setFilters($filters);
$Cascade->addFilter($filter);

// filter
$Cascade->filter($value [, $args...]);