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typo3conf/ext/vhs/Classes/ViewHelpers/Math/RangeViewHelper.php

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+<?php
+namespace FluidTYPO3\Vhs\ViewHelpers\Math;
+
+/*
+ * This file is part of the FluidTYPO3/Vhs project under GPLv2 or later.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.md file that was distributed with this source code.
+ */
+
+/**
+ * Math: Range
+ *
+ * Gets the lowest and highest number from an array of numbers.
+ * Returns an array of [low, high]. For individual low/high
+ * values please use v:math.maximum and v:math.minimum.
+ *
+ * @author Claus Due <claus@namelesscoder.net>
+ * @package Vhs
+ * @subpackage ViewHelpers\Math
+ */
+class RangeViewHelper extends AbstractSingleMathViewHelper {
+
+	/**
+	 * @return mixed
+	 * @throw Exception
+	 */
+	public function render() {
+		$a = $this->getInlineArgument();
+		$aIsIterable = $this->assertIsArrayOrIterator($a);
+		if (TRUE === $aIsIterable) {
+			$a = $this->arrayFromArrayOrTraversableOrCSV($a);
+			sort($a, SORT_NUMERIC);
+			if (1 === count($a)) {
+				return array(reset($a), reset($a));
+			} else {
+				return array(array_shift($a), array_pop($a));
+			}
+		}
+		return $a;
+	}
+
+}