2 /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
9 * LICENSE: This source file is subject to version 3.01 of the PHP license
10 * that is available through the world-wide-web at the following URI:
11 * http://www.php.net/license/3_01.txt If you did not receive a copy of
12 * the PHP License and are unable to obtain it through the web, please
13 * send a note to license@php.net so we can mail you a copy immediately.
16 * @package HTML_QuickForm
17 * @author Chuck Burgess <ashnazg@php.net>
18 * @copyright 2001-2018 The PHP Group
19 * @license http://www.php.net/license/3_01.txt PHP License 3.01
21 * @link http://pear.php.net/package/HTML_QuickForm
25 * Provides a collection of static methods for array manipulation.
27 * (courtesy of CiviCRM project (https://civicrm.org/)
30 * @package HTML_QuickForm
31 * @author Chuck Burgess <ashnazg@php.net>
32 * @version Release: 3.2.16
35 class HTML_QuickForm_utils
38 * Get a single value from an array-tree.
40 * @param array $values Ex: ['foo' => ['bar' => 123]].
41 * @param array $path Ex: ['foo', 'bar'].
42 * @param mixed $default
43 * @return mixed Ex 123.
48 function pathGet($values, $path, $default = NULL) {
49 foreach ($path as $key) {
50 if (!is_array($values) || !isset($values[$key])) {
53 $values = $values[$key];
59 * Check if a key isset which may be several layers deep.
61 * This is a helper for when the calling function does not know how many layers deep
62 * the path array is so cannot easily check.
64 * @param array $values
71 function pathIsset($values, $path) {
72 foreach ($path as $key) {
73 if (!is_array($values) || !isset($values[$key])) {
76 $values = $values[$key];
82 * Set a single value in an array tree.
84 * @param array $values Ex: ['foo' => ['bar' => 123]].
85 * @param array $pathParts Ex: ['foo', 'bar'].
86 * @param mixed $value Ex: 456.
92 function pathSet(&$values, $pathParts, $value) {
94 $last = array_pop($pathParts);
95 foreach ($pathParts as $part) {
96 if (!isset($r[$part])) {
105 * Check if a key isset which may be several layers deep.
107 * This is a helper for when the calling function does not know how many layers deep the
108 * path array is so cannot easily check.
110 * @param array $array
117 function recursiveIsset($array, $path) {
118 return self::pathIsset($array, $path);
122 * Check if a key isset which may be several layers deep.
124 * This is a helper for when the calling function does not know how many layers deep the
125 * path array is so cannot easily check.
127 * @param array $array
128 * @param array $path An array of keys,
129 * e.g [0, 'bob', 8] where we want to check if $array[0]['bob'][8]
130 * @param mixed $default Value to return if not found.
136 function recursiveValue($array, $path, $default = NULL) {
137 return self::pathGet($array, $path, $default);
141 * Append the value to the array using the key provided.
143 * e.g if value is 'llama' & path is [0, 'email', 'location'] result will be
144 * [0 => ['email' => ['location' => 'llama']]
148 * @param array $source
154 function recursiveBuild($path, $value, $source = array()) {
155 self::pathSet($source, $path, $value);