First Local Commit - After Clean up.

Signed-off-by: Rick Hays <rhays@haysgang.com>

system/Helpers/array_helper.php

@@ -0,0 +1,124 @@
+<?php
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP
+ *
+ * This content is released under the MIT License (MIT)
+ *
+ * Copyright (c) 2014-2019 British Columbia Institute of Technology
+ * Copyright (c) 2019 CodeIgniter Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @package    CodeIgniter
+ * @author     CodeIgniter Dev Team
+ * @copyright  2019 CodeIgniter Foundation
+ * @license    https://opensource.org/licenses/MIT	MIT License
+ * @link       https://codeigniter.com
+ * @since      Version 4.0.0
+ * @filesource
+ */
+
+/**
+ * CodeIgniter Array Helpers
+ *
+ * @package CodeIgniter
+ */
+
+if (! function_exists('dot_array_search'))
+{
+	/**
+	 * Searches an array through dot syntax. Supports
+	 * wildcard searches, like foo.*.bar
+	 *
+	 * @param string $index
+	 * @param array  $array
+	 *
+	 * @return mixed|null
+	 */
+	function dot_array_search(string $index, array $array)
+	{
+		$segments = explode('.', rtrim(rtrim($index, '* '), '.'));
+
+		return _array_search_dot($segments, $array);
+	}
+}
+
+if (! function_exists('_array_search_dot'))
+{
+	/**
+	 * Used by dot_array_search to recursively search the
+	 * array with wildcards.
+	 *
+	 * @param array $indexes
+	 * @param array $array
+	 *
+	 * @return mixed|null
+	 */
+	function _array_search_dot(array $indexes, array $array)
+	{
+		// Grab the current index
+		$currentIndex = $indexes
+			? array_shift($indexes)
+			: null;
+
+		if (empty($currentIndex) || (! isset($array[$currentIndex]) && $currentIndex !== '*'))
+		{
+			return null;
+		}
+
+		// Handle Wildcard (*)
+		if ($currentIndex === '*')
+		{
+			// If $array has more than 1 item, we have to loop over each.
+			if (is_array($array))
+			{
+				foreach ($array as $key => $value)
+				{
+					$answer = _array_search_dot($indexes, $value);
+
+					if ($answer !== null)
+					{
+						return $answer;
+					}
+				}
+
+				// Still here after searching all child nodes?
+				return null;
+			}
+		}
+
+		// If this is the last index, make sure to return it now,
+		// and not try to recurse through things.
+		if (empty($indexes))
+		{
+			return $array[$currentIndex];
+		}
+
+		// Do we need to recursively search this value?
+		if (is_array($array[$currentIndex]) && $array[$currentIndex])
+		{
+			return _array_search_dot($indexes, $array[$currentIndex]);
+		}
+
+		// Otherwise we've found our match!
+		return $array[$currentIndex];
+	}
+}