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824 lines
23 KiB
824 lines
23 KiB
<?php
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/**
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* li₃: the most RAD framework for PHP (http://li3.me)
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*
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* Copyright 2009, Union of RAD. All rights reserved. This source
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* code is distributed under the terms of the BSD 3-Clause License.
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* The full license text can be found in the LICENSE.txt file.
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*/
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namespace lithium\util;
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/**
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* Used for complex manipulation, comparison, and access of array data. Some methods allow for
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* XPath-like data access, as follows:
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*
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* - `'/User/id'`: Similar to the classic {n}.User.id.
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* - `'/User[2]/name'`: Selects the name of the second User.
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* - `'/User[id>2]'`: Selects all Users with an id > 2.
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* - `'/User[id>2][<5]'`: Selects all Users with an id > 2 but < 5.
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* - `'/Post/Comment[author_name=John]/../name'`: Selects the name of
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* all posts that have at least one comment written by John.
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* - `'/Posts[name]'`: Selects all Posts that have a `'name'` key.
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* - `'/Comment/.[1]'`: Selects the contents of the first comment.
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* - `'/Comment/.[:last]'`: Selects the last comment.
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* - `'/Comment/.[:first]'`: Selects the first comment.
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* - `'/Comment[text=/lithium/i]`': Selects the all comments that have
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* a text matching the regex `/lithium/i`.
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* - `'/Comment/@*'`: Selects all key names of all comments.
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*/
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class Set {
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/**
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* Add the keys/values in `$array2` that are not found in `$array` onto the end of `$array`.
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*
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* @param mixed $array Original array.
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* @param mixed $array2 Second array to add onto the original.
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* @return array An array containing all the keys of the second array not already present in the
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* first.
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*/
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public static function append(array $array, array $array2) {
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$arrays = func_get_args();
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$array = array_shift($arrays);
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foreach ($arrays as $array2) {
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if (!$array && $array2) {
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$array = $array2;
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continue;
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}
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foreach ($array2 as $key => $value) {
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if (!array_key_exists($key, $array)) {
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$array[$key] = $value;
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} elseif (is_array($value)) {
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$array[$key] = static::append($array[$key], $array2[$key]);
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}
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}
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}
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return $array;
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}
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/**
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* Checks if a particular path is set in an array. Tests by key name, or dot-delimited key
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* name, i.e.:
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*
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* ``` embed:lithium\tests\cases\util\SetTest::testCheck(1-4) ```
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*
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* @param mixed $data Data to check on.
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* @param mixed $path A dot-delimited string.
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* @return boolean `true` if path is found, `false` otherwise.
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*/
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public static function check($data, $path = null) {
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if (!$path) {
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return $data;
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}
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$path = is_array($path) ? $path : explode('.', $path);
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foreach ($path as $i => $key) {
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if (is_numeric($key) && (integer) $key > 0 || $key === '0') {
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$key = (integer) $key;
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}
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if ($i === count($path) - 1) {
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return (is_array($data) && isset($data[$key]));
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} else {
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if (!is_array($data) || !isset($data[$key])) {
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return false;
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}
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$data =& $data[$key];
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}
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}
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}
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/**
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* Creates an associative array using a `$path1` as the path to build its keys, and optionally
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* `$path2` as path to get the values. If `$path2` is not specified, all values will be
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* initialized to `null` (useful for `Set::merge()`). You can optionally group the values by
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* what is obtained when following the path specified in `$groupPath`.
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*
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* @param array $data Array from where to extract keys and values.
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* @param mixed $path1 As an array, or as a dot-delimited string.
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* @param mixed $path2 As an array, or as a dot-delimited string.
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* @param string $groupPath As an array, or as a dot-delimited string.
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* @return array Combined array.
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*/
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public static function combine($data, $path1 = null, $path2 = null, $groupPath = null) {
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if (!$data) {
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return [];
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}
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if (is_object($data)) {
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$data = get_object_vars($data);
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}
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if (is_array($path1)) {
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$format = array_shift($path1);
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$keys = static::format($data, $format, $path1);
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} else {
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$keys = static::extract($data, $path1);
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}
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$vals = [];
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if (!empty($path2) && is_array($path2)) {
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$format = array_shift($path2);
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$vals = static::format($data, $format, $path2);
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} elseif (!empty($path2)) {
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$vals = static::extract($data, $path2);
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}
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$valCount = count($vals);
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$count = count($keys);
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for ($i = $valCount; $i < $count; $i++) {
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$vals[$i] = null;
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}
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if ($groupPath) {
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$group = static::extract($data, $groupPath);
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if (!empty($group)) {
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$c = count($keys);
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for ($i = 0; $i < $c; $i++) {
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if (!isset($group[$i])) {
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$group[$i] = 0;
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}
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if (!isset($out[$group[$i]])) {
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$out[$group[$i]] = [];
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}
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$out[$group[$i]][$keys[$i]] = $vals[$i];
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}
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return $out;
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}
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}
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return array_combine($keys, $vals);
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}
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/**
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* Determines if the array elements in `$array2` are wholly contained within `$array1`. Works
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* recursively.
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*
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* @param array $array1 First value.
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* @param array $array2 Second value.
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* @return boolean Returns `true` if `$array1` wholly contains the keys and values of `$array2`,
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* otherwise, returns `false`. Returns `false` if either array is empty.
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*/
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public static function contains(array $array1, array $array2) {
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if (!$array1 || !$array2) {
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return false;
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}
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foreach ($array2 as $key => $val) {
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if (!isset($array1[$key]) || $array1[$key] !== $val) {
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return false;
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}
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if (is_array($val) && !static::contains($array1[$key], $val)) {
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return false;
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}
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}
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return true;
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}
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/**
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* Counts the dimensions of an array. If `$all` is set to `false` (which is the default) it will
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* only consider the dimension of the first element in the array.
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*
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* @param array $data Array to count dimensions on.
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* @param array $options
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* @return integer The number of dimensions in `$array`.
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*/
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public static function depth($data, array $options = []) {
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$defaults = ['all' => false, 'count' => 0];
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$options += $defaults;
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if (!$data) {
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return 0;
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}
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if (!$options['all']) {
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return (is_array(reset($data))) ? static::depth(reset($data)) + 1 : 1;
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}
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$depth = [$options['count']];
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if (is_array($data) && reset($data) !== false) {
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foreach ($data as $value) {
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$depth[] = static::depth($value, [
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'all' => $options['all'],
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'count' => $options['count'] + 1
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]);
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}
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}
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return max($depth);
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}
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/**
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* Computes the difference between two arrays.
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*
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* @param array $val1 First value.
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* @param array $val2 Second value.
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* @return array Computed difference.
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*/
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public static function diff(array $val1, array $val2) {
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if (!$val1 || !$val2) {
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return $val2 ?: $val1;
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}
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$out = [];
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foreach ($val1 as $key => $val) {
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$exists = isset($val2[$key]);
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if (($exists && $val2[$key] !== $val) || !$exists) {
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$out[$key] = $val;
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}
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unset($val2[$key]);
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}
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foreach ($val2 as $key => $val) {
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if (!isset($out[$key])) {
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$out[$key] = $val;
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}
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}
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return $out;
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}
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/**
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* Implements partial support for XPath 2.0.
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*
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* @param array $data An array of data to extract from.
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* @param string $path An absolute XPath 2.0 path. Only absolute paths starting with a
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* single slash are supported right now. Implemented selectors:
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* - `'/User/id'`: Similar to the classic {n}.User.id.
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* - `'/User[2]/name'`: Selects the name of the second User.
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* - `'/User[id>2]'`: Selects all Users with an id > 2.
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* - `'/User[id>2][<5]'`: Selects all Users with an id > 2 but < 5.
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* - `'/Post/Comment[author_name=John]/../name'`: Selects the name of
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* all posts that have at least one comment written by John.
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* - `'/Posts[name]'`: Selects all Posts that have a `'name'` key.
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* - `'/Comment/.[1]'`: Selects the contents of the first comment.
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* - `'/Comment/.[:last]'`: Selects the last comment.
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* - `'/Comment/.[:first]'`: Selects the first comment.
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* - `'/Comment[text=/lithium/i]`': Selects the all comments that have
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* a text matching the regex `/lithium/i`.
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* - `'/Comment/@*'`: Selects all key names of all comments.
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* @param array $options Currently only supports `'flatten'` which can be
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* disabled for higher XPath-ness.
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* @return array An array of matched items.
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*/
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public static function extract(array $data, $path = null, array $options = []) {
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$defaults = ['flatten' => true];
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$options += $defaults;
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if (!$options['flatten']) {
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$message = 'Non-flatten mode in `Set::extract()` has been deprecated.';
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trigger_error($message, E_USER_DEPRECATED);
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}
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if (!$data) {
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return [];
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}
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if ($path === '/') {
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return array_filter($data, function($data) {
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return ($data === 0 || $data === '0' || !empty($data));
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});
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}
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$contexts = $data;
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if (!isset($contexts[0])) {
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$contexts = [$data];
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}
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$tokens = array_slice(preg_split('/(?<!=)\/(?![a-z-]*\])/', $path), 1);
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do {
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$token = array_shift($tokens);
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$conditions = false;
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if (preg_match_all('/\[([^=]+=\/[^\/]+\/|[^\]]+)\]/', $token, $m)) {
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$conditions = $m[1];
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$token = substr($token, 0, strpos($token, '['));
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}
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$matches = [];
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foreach ($contexts as $key => $context) {
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if (!isset($context['trace'])) {
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$context = ['trace' => [null], 'item' => $context, 'key' => $key];
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}
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if ($token === '..') {
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if (count($context['trace']) === 1) {
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$context['trace'][] = $context['key'];
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}
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array_pop($context['trace']);
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$parent = join('/', $context['trace']);
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$context['item'] = static::extract($data, $parent);
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array_pop($context['trace']);
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$context['item'] = array_shift($context['item']);
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$matches[] = $context;
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continue;
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}
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$match = false;
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if ($token === '@*' && is_array($context['item'])) {
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$matches[] = [
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'trace' => array_merge($context['trace'], (array) $key),
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'key' => $key,
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'item' => array_keys($context['item'])
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];
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} elseif (is_array($context['item']) && isset($context['item'][$token])) {
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$items = $context['item'][$token];
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if (!is_array($items)) {
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$items = [$items];
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} elseif (!isset($items[0])) {
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$current = current($items);
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if ((is_array($current) && count($items) <= 1) || !is_array($current)) {
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$items = [$items];
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}
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}
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foreach ($items as $key => $item) {
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$ctext = [$context['key']];
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if (!is_numeric($key)) {
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$ctext[] = $token;
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$token = array_shift($tokens);
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if (isset($items[$token])) {
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$ctext[] = $token;
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$item = $items[$token];
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$matches[] = [
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'trace' => array_merge($context['trace'], $ctext),
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'key' => $key,
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'item' => $item
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];
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break;
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} else {
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array_unshift($tokens, $token);
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}
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} else {
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$ctext[] = $token;
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}
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$matches[] = [
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'trace' => array_merge($context['trace'], $ctext),
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'key' => $key,
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'item' => $item
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];
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}
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} elseif (
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$key === $token || (is_numeric($token) && $key == $token) || $token === '.'
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) {
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$context['trace'][] = $key;
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$matches[] = [
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'trace' => $context['trace'],
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'key' => $key,
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'item' => $context['item']
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];
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}
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}
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if ($conditions) {
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foreach ($conditions as $condition) {
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$filtered = [];
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$length = count($matches);
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foreach ($matches as $i => $match) {
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if (static::matches($match['item'], [$condition], $i + 1, $length)) {
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$filtered[] = $match;
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}
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}
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$matches = $filtered;
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}
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}
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$contexts = $matches;
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if (empty($tokens)) {
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break;
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}
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} while (true);
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$r = [];
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foreach ($matches as $match) {
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$key = array_pop($match['trace']);
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$condition = (!is_int($key) && $key !== null);
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if ((!$options['flatten'] || is_array($match['item'])) && $condition) {
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$r[] = [$key => $match['item']];
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} else {
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$r[] = $match['item'];
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}
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}
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return $r;
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}
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|
|
/**
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* Collapses a multi-dimensional array into a single dimension, using a delimited array path
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* for each array element's key, i.e. [array('Foo' => ['Bar' => 'Far'])] becomes
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* ['0.Foo.Bar' => 'Far'].
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*
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* @param array $data array to flatten
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* @param array $options Available options are:
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* - `'separator'`: String to separate array keys in path (defaults to `'.'`).
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* - `'path'`: Starting point (defaults to null).
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* @return array
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*/
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public static function flatten($data, array $options = []) {
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$defaults = ['separator' => '.', 'path' => null];
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$options += $defaults;
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$result = [];
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if ($options['path'] !== null) {
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$options['path'] .= $options['separator'];
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}
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foreach ($data as $key => $val) {
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if (!is_array($val)) {
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$result[$options['path'] . $key] = $val;
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continue;
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}
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$opts = ['separator' => $options['separator'], 'path' => $options['path'] . $key];
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$result += (array) static::flatten($val, $opts);
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}
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return $result;
|
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}
|
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|
|
/**
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* Accepts a one-dimensional array where the keys are separated by a delimiter.
|
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*
|
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* @param array $data The one-dimensional array to expand.
|
|
* @param array $options The options used when expanding the array:
|
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* - `'separator'` _string_: The delimiter to use when separating keys. Defaults
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* to `'.'`.
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* @return array Returns a multi-dimensional array expanded from a one dimensional
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* dot-separated array.
|
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*/
|
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public static function expand(array $data, array $options = []) {
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$defaults = ['separator' => '.'];
|
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$options += $defaults;
|
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$result = [];
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|
|
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foreach ($data as $key => $val) {
|
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if (strpos($key, $options['separator']) === false) {
|
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if (!isset($result[$key])) {
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$result[$key] = $val;
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}
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continue;
|
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}
|
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list($path, $key) = explode($options['separator'], $key, 2);
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$path = is_numeric($path) ? (integer) $path : $path;
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$result[$path][$key] = $val;
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}
|
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foreach ($result as $key => $value) {
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if (is_array($value)) {
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$result[$key] = static::expand($value, $options);
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}
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Returns a series of values extracted from an array, formatted in a format string.
|
|
*
|
|
* @param array $data Source array from which to extract the data.
|
|
* @param string $format Format string into which values will be inserted using `sprintf()`.
|
|
* @param array $keys An array containing one or more `Set::extract()`-style key paths.
|
|
* @return array An array of strings extracted from `$keys` and formatted with `$format`.
|
|
* @link http://php.net/sprintf
|
|
*/
|
|
public static function format($data, $format, $keys) {
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$extracted = [];
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$count = count($keys);
|
|
|
|
if (!$count) {
|
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return;
|
|
}
|
|
for ($i = 0; $i < $count; $i++) {
|
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$extracted[] = static::extract($data, $keys[$i]);
|
|
}
|
|
$out = [];
|
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$data = $extracted;
|
|
$count = count($data[0]);
|
|
|
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if (preg_match_all('/\{([0-9]+)\}/msi', $format, $keys2) && isset($keys2[1])) {
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|
$keys = $keys2[1];
|
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$format = preg_split('/\{([0-9]+)\}/msi', $format);
|
|
$count2 = count($format);
|
|
|
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for ($j = 0; $j < $count; $j++) {
|
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$formatted = '';
|
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for ($i = 0; $i <= $count2; $i++) {
|
|
if (isset($format[$i])) {
|
|
$formatted .= $format[$i];
|
|
}
|
|
if (isset($keys[$i]) && isset($data[$keys[$i]][$j])) {
|
|
$formatted .= $data[$keys[$i]][$j];
|
|
}
|
|
}
|
|
$out[] = $formatted;
|
|
}
|
|
return $out;
|
|
}
|
|
$count2 = count($data);
|
|
|
|
for ($j = 0; $j < $count; $j++) {
|
|
$args = [];
|
|
|
|
for ($i = 0; $i < $count2; $i++) {
|
|
if (isset($data[$i][$j])) {
|
|
$args[] = $data[$i][$j];
|
|
}
|
|
}
|
|
$out[] = vsprintf($format, $args);
|
|
}
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* Inserts `$data` into an array as defined by `$path`.
|
|
*
|
|
* @param mixed $list Where to insert into.
|
|
* @param mixed $path A dot-delimited string.
|
|
* @param array $data Data to insert.
|
|
* @return array
|
|
*/
|
|
public static function insert($list, $path, $data = []) {
|
|
if (!is_array($path)) {
|
|
$path = explode('.', $path);
|
|
}
|
|
$_list =& $list;
|
|
|
|
foreach ($path as $i => $key) {
|
|
if (is_numeric($key) && (integer) $key > 0 || $key === '0') {
|
|
$key = (integer) $key;
|
|
}
|
|
if ($i === count($path) - 1) {
|
|
$_list[$key] = $data;
|
|
} else {
|
|
if (!isset($_list[$key])) {
|
|
$_list[$key] = [];
|
|
}
|
|
$_list =& $_list[$key];
|
|
}
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* Checks to see if all the values in the array are numeric.
|
|
*
|
|
* @param array $array The array to check. If null, the value of the current Set object.
|
|
* @return mixed `true` if values are numeric, `false` if not and `null` if the array to
|
|
* check is empty.
|
|
*/
|
|
public static function isNumeric($array = null) {
|
|
if (empty($array)) {
|
|
return null;
|
|
}
|
|
if ($array === range(0, count($array) - 1)) {
|
|
return true;
|
|
}
|
|
$numeric = true;
|
|
$keys = array_keys($array);
|
|
$count = count($keys);
|
|
|
|
for ($i = 0; $i < $count; $i++) {
|
|
if (!is_numeric($array[$keys[$i]])) {
|
|
$numeric = false;
|
|
break;
|
|
}
|
|
}
|
|
return $numeric;
|
|
}
|
|
|
|
/**
|
|
* This function can be used to see if a single item or a given XPath
|
|
* match certain conditions.
|
|
*
|
|
* @param array $data An array of data to execute the match on.
|
|
* @param mixed $conditions An array of condition strings or an XPath expression.
|
|
* @param integer $i Optional: The 'nth'-number of the item being matched.
|
|
* @param integer $length
|
|
* @return boolean
|
|
*/
|
|
public static function matches($data, $conditions, $i = null, $length = null) {
|
|
if (!$conditions) {
|
|
return true;
|
|
}
|
|
if (is_string($conditions)) {
|
|
return (boolean) static::extract($data, $conditions);
|
|
}
|
|
foreach ($conditions as $condition) {
|
|
if ($condition === ':last') {
|
|
if ($i !== $length) {
|
|
return false;
|
|
}
|
|
continue;
|
|
} elseif ($condition === ':first') {
|
|
if ($i !== 1) {
|
|
return false;
|
|
}
|
|
continue;
|
|
}
|
|
if (!preg_match('/(.+?)([><!]?[=]|[><])(.*)/', $condition, $match)) {
|
|
if (ctype_digit($condition)) {
|
|
if ($i !== (int) $condition) {
|
|
return false;
|
|
}
|
|
} elseif (preg_match_all('/(?:^[0-9]+|(?<=,)[0-9]+)/', $condition, $matches)) {
|
|
return in_array($i, $matches[0]);
|
|
} elseif (!isset($data[$condition])) {
|
|
return false;
|
|
}
|
|
continue;
|
|
}
|
|
list(,$key,$op,$expected) = $match;
|
|
|
|
if (!isset($data[$key])) {
|
|
return false;
|
|
}
|
|
$val = $data[$key];
|
|
|
|
if ($op === '=' && $expected && $expected[0] === '/') {
|
|
return preg_match($expected, $val);
|
|
} elseif ($op === '=' && $val != $expected) {
|
|
return false;
|
|
} elseif ($op === '!=' && $val == $expected) {
|
|
return false;
|
|
} elseif ($op === '>' && $val <= $expected) {
|
|
return false;
|
|
} elseif ($op === '<' && $val >= $expected) {
|
|
return false;
|
|
} elseif ($op === '<=' && $val > $expected) {
|
|
return false;
|
|
} elseif ($op === '>=' && $val < $expected) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* This method can be thought of as a hybrid between PHP's `array_merge()`
|
|
* and `array_merge_recursive()`. The difference to the two is that if an
|
|
* array key contains another array then the function behaves recursive
|
|
* (unlike `array_merge()`) but does not do if for keys containing strings
|
|
* (unlike `array_merge_recursive()`). Please note: This function will work
|
|
* with an unlimited amount of arguments and typecasts non-array parameters
|
|
* into arrays.
|
|
*
|
|
* @param array $array1 The base array.
|
|
* @param array $array2 The array to be merged on top of the base array.
|
|
* @return array Merged array of all passed params.
|
|
*/
|
|
public static function merge(array $array1, array $array2) {
|
|
$args = [$array1, $array2];
|
|
|
|
if (!$array1 || !$array2) {
|
|
return $array1 ?: $array2;
|
|
}
|
|
$result = (array) current($args);
|
|
|
|
while (($arg = next($args)) !== false) {
|
|
foreach ((array) $arg as $key => $val) {
|
|
if (is_array($val) && isset($result[$key]) && is_array($result[$key])) {
|
|
$result[$key] = static::merge($result[$key], $val);
|
|
} elseif (is_int($key)) {
|
|
$result[] = $val;
|
|
} else {
|
|
$result[$key] = $val;
|
|
}
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Normalizes a string or array list.
|
|
*
|
|
* ```
|
|
* Set::normalize('foo,bar'); // returns ['foo' => null, 'bar' => null];
|
|
* Set::normalize(['foo', 'bar' => 'baz']; // returns ['foo' => null, 'bar' => 'baz'];
|
|
* ```
|
|
*
|
|
* @param string|array $list List to normalize.
|
|
* @param boolean $assoc If `true`, `$list` will be converted to an associative array.
|
|
* @param string $sep If `$list` is a string, it will be split into an array with `$sep`.
|
|
* @param boolean $trim If `true`, separated strings will be trimmed.
|
|
* @return array
|
|
*/
|
|
public static function normalize($list, $assoc = true, $sep = ',', $trim = true) {
|
|
if (is_string($list)) {
|
|
$list = explode($sep, $list);
|
|
$list = ($trim) ? array_map('trim', $list) : $list;
|
|
return ($assoc) ? static::normalize($list) : $list;
|
|
}
|
|
|
|
if (!is_array($list)) {
|
|
return $list;
|
|
}
|
|
|
|
$keys = array_keys($list);
|
|
$count = count($keys);
|
|
$numeric = true;
|
|
|
|
if (!$assoc) {
|
|
for ($i = 0; $i < $count; $i++) {
|
|
if (!is_int($keys[$i])) {
|
|
$numeric = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!$numeric || $assoc) {
|
|
$newList = [];
|
|
for ($i = 0; $i < $count; $i++) {
|
|
if (is_int($keys[$i]) && is_scalar($list[$keys[$i]])) {
|
|
$newList[$list[$keys[$i]]] = null;
|
|
} else {
|
|
$newList[$keys[$i]] = $list[$keys[$i]];
|
|
}
|
|
}
|
|
$list = $newList;
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* Removes an element from an array as defined by `$path`.
|
|
*
|
|
* @param mixed $list From where to remove.
|
|
* @param mixed $path A dot-delimited string.
|
|
* @return array Array with `$path` removed from its value.
|
|
*/
|
|
public static function remove($list, $path = null) {
|
|
if (empty($path)) {
|
|
return $list;
|
|
}
|
|
if (!is_array($path)) {
|
|
$path = explode('.', $path);
|
|
}
|
|
$_list =& $list;
|
|
|
|
foreach ($path as $i => $key) {
|
|
if (is_numeric($key) && (integer) $key > 0 || $key === '0') {
|
|
$key = (integer) $key;
|
|
}
|
|
if ($i === count($path) - 1) {
|
|
unset($_list[$key]);
|
|
} else {
|
|
if (!isset($_list[$key])) {
|
|
return $list;
|
|
}
|
|
$_list =& $_list[$key];
|
|
}
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* Sorts an array by any value, determined by a `Set`-compatible path.
|
|
*
|
|
* @param array $data
|
|
* @param string $path A `Set`-compatible path to the array value.
|
|
* @param string $dir Either `'asc'` (the default) or `'desc'`.
|
|
* @return array
|
|
*/
|
|
public static function sort($data, $path, $dir = 'asc') {
|
|
$flatten = function($flatten, $results, $key = null) {
|
|
$stack = [];
|
|
foreach ((array) $results as $k => $r) {
|
|
$id = $k;
|
|
if ($key !== null) {
|
|
$id = $key;
|
|
}
|
|
if (is_array($r)) {
|
|
$stack = array_merge($stack, $flatten($flatten, $r, $id));
|
|
} else {
|
|
$stack[] = ['id' => $id, 'value' => $r];
|
|
}
|
|
}
|
|
return $stack;
|
|
};
|
|
$extract = static::extract($data, $path);
|
|
$result = $flatten($flatten, $extract);
|
|
|
|
$keys = static::extract($result, '/id');
|
|
$values = static::extract($result, '/value');
|
|
|
|
$dir = ($dir === 'desc') ? SORT_DESC : SORT_ASC;
|
|
array_multisort($values, $dir, $keys, $dir);
|
|
$sorted = [];
|
|
$keys = array_unique($keys);
|
|
|
|
foreach ($keys as $k) {
|
|
$sorted[] = $data[$k];
|
|
}
|
|
return $sorted;
|
|
}
|
|
|
|
/**
|
|
* Slices an array into two, separating them determined by an array of keys.
|
|
*
|
|
* Usage examples:
|
|
*
|
|
* ``` embed:lithium\tests\cases\util\SetTest::testSetSlice(1-4) ```
|
|
*
|
|
* @param array $subject Array that gets split apart
|
|
* @param array|string $keys An array of keys or a single key as string
|
|
* @return array An array containing both arrays, having the array with requested keys first and
|
|
* the remainder as second element
|
|
*/
|
|
public static function slice(array $data, $keys) {
|
|
$removed = array_intersect_key($data, array_fill_keys((array) $keys, true));
|
|
$data = array_diff_key($data, $removed);
|
|
return [$data, $removed];
|
|
}
|
|
|
|
}
|
|
|
|
?>
|