Cascade

A lightweight API to filter values.

Installation

composer require fg/cascade

Usage

Filtering a value:

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

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

Filtering a value depending on additionnal arguments:

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

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

Filtering a value with a filter object:

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...]);