108 lines
2.0 KiB
PHP
108 lines
2.0 KiB
PHP
<?php
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/**
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* @package Joomla.Component.Builder
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*
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* @created 3rd September, 2020
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* @author Llewellyn van der Merwe <https://dev.vdm.io>
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* @git Joomla Component Builder <https://git.vdm.dev/joomla/Component-Builder>
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* @copyright Copyright (C) 2015 Vast Development Method. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE.txt
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*/
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namespace VDM\Joomla\Utilities;
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/**
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* Some array tricks helper
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*
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* @since 3.0.9
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*/
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abstract class ArrayHelper
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{
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/**
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* Check if have an array with a length
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*
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* @input array The array to check
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*
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* @returns int|false number of items in array on success
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*
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* @since 3.2.0
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*/
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public static function check($array, $removeEmptyString = false)
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{
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if (is_array($array) && ($nr = count((array) $array)) > 0)
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{
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// also make sure the empty strings are removed
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if ($removeEmptyString)
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{
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$array = array_filter($array);
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if ($array === [])
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{
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return false;
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}
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return count($array);
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}
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return $nr;
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}
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return false;
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}
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/**
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* Merge an array of array's
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*
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* @input array The arrays you would like to merge
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*
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* @returns array|null merged array on success
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*
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* @since 3.0.9
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*/
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public static function merge($arrays): ?array
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{
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if(self::check($arrays))
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{
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$merged = [];
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foreach ($arrays as $array)
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{
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if (self::check($array))
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{
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$merged = array_merge($merged, $array);
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}
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}
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return $merged;
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}
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return null;
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}
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/**
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* Check if arrays intersect
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*
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* @input array The first array
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* @input array The second array
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*
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* @returns bool true if intersect else false
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*
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* @since 3.1.1
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*/
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public static function intersect($a_array, $b_array): bool
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{
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// flip the second array
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$b_array = array_flip($b_array);
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// loop the first array
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foreach ($a_array as $v)
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{
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if (isset($b_array[$v]))
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{
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return true;
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}
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}
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return false;
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}
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}
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