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124 lines
3.3 KiB
124 lines
3.3 KiB
<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014-2019 British Columbia Institute of Technology
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* Copyright (c) 2019 CodeIgniter Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author CodeIgniter Dev Team
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* @copyright 2019 CodeIgniter Foundation
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* @license https://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 4.0.0
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* @filesource
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*/
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/**
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* CodeIgniter Array Helpers
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*
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* @package CodeIgniter
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*/
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if (! function_exists('dot_array_search'))
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{
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/**
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* Searches an array through dot syntax. Supports
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* wildcard searches, like foo.*.bar
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*
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* @param string $index
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* @param array $array
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*
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* @return mixed|null
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*/
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function dot_array_search(string $index, array $array)
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{
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$segments = explode('.', rtrim(rtrim($index, '* '), '.'));
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return _array_search_dot($segments, $array);
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}
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}
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if (! function_exists('_array_search_dot'))
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{
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/**
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* Used by dot_array_search to recursively search the
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* array with wildcards.
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*
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* @param array $indexes
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* @param array $array
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*
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* @return mixed|null
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*/
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function _array_search_dot(array $indexes, array $array)
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{
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// Grab the current index
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$currentIndex = $indexes
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? array_shift($indexes)
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: null;
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if (empty($currentIndex) || (! isset($array[$currentIndex]) && $currentIndex !== '*'))
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{
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return null;
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}
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// Handle Wildcard (*)
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if ($currentIndex === '*')
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{
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// If $array has more than 1 item, we have to loop over each.
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if (is_array($array))
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{
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foreach ($array as $key => $value)
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{
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$answer = _array_search_dot($indexes, $value);
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if ($answer !== null)
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{
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return $answer;
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}
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}
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// Still here after searching all child nodes?
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return null;
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}
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}
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// If this is the last index, make sure to return it now,
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// and not try to recurse through things.
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if (empty($indexes))
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{
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return $array[$currentIndex];
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}
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// Do we need to recursively search this value?
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if (is_array($array[$currentIndex]) && $array[$currentIndex])
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{
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return _array_search_dot($indexes, $array[$currentIndex]);
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}
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// Otherwise we've found our match!
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return $array[$currentIndex];
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}
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}
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