60 lines
1.5 KiB
PHP
60 lines
1.5 KiB
PHP
<?php
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namespace FluidTYPO3\Vhs\ViewHelpers\Math;
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/*
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* This file is part of the FluidTYPO3/Vhs project under GPLv2 or later.
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*
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* For the full copyright and license information, please read the
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* LICENSE.md file that was distributed with this source code.
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*/
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/**
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* Math: Sum
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*
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* Performs sum of $a and $b. A can be an array and $b a
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* number, in which case each member of $a gets summed with $b.
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* If $a is an array and $b is not provided then array_sum is
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* used to return a single numeric value. If both $a and $b are
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* arrays, each member of $a is summed against the corresponding
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* member in $b compared using index.
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*
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* @author Claus Due <claus@namelesscoder.net>
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* @package Vhs
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* @subpackage ViewHelpers\Math
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*/
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class SumViewHelper extends AbstractMultipleMathViewHelper {
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/**
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* @return void
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*/
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public function initializeArguments() {
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parent::initializeArguments();
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$this->overrideArgument('b', 'mixed', 'Optional: Second number or Iterator/Traversable/Array for calculation', FALSE, NULL);
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}
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/**
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* @return mixed
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* @throw Exception
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*/
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public function render() {
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$a = $this->getInlineArgument();
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$b = $this->arguments['b'];
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$aIsIterable = $this->assertIsArrayOrIterator($a);
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if (TRUE === $aIsIterable && NULL === $b) {
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$a = $this->arrayFromArrayOrTraversableOrCSV($a);
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return array_sum($a);
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}
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return $this->calculate($a, $b);
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}
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/**
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* @param mixed $a
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* @param $b
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* @return mixed
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*/
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protected function calculateAction($a, $b) {
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return $a + $b;
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}
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}
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