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<?php/*** Library of array functions for Cake.** CakePHP(tm) : Rapid Development Framework (http://cakephp.org)* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)** Licensed under The MIT License* For full copyright and license information, please see the LICENSE.txt* Redistributions of files must retain the above copyright notice.** @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)* @link http://cakephp.org CakePHP(tm) Project* @package Cake.Utility* @since CakePHP(tm) v 1.2.0* @license http://www.opensource.org/licenses/mit-license.php MIT License*/App::uses('String', 'Utility');App::uses('Hash', 'Utility');/*** Class used for manipulation of arrays.** @package Cake.Utility* @deprecated Will be removed in 3.0. Use Hash instead.*/class Set {/*** This function 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).** Since this method emulates `array_merge`, it will re-order numeric keys. When combined with out of* order numeric keys containing arrays, results can be lossy.** Note: This function will work with an unlimited amount of arguments and typecasts non-array* parameters into arrays.** @param array $data Array to be merged* @param array $merge Array to merge with* @return array Merged array* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::merge*/public static function merge($data, $merge = null) {$args = func_get_args();if (empty($args[1]) && count($args) <= 2) {return (array)$args[0];}if (!is_array($args[0])) {$args[0] = (array)$args[0];}return call_user_func_array('Hash::merge', $args);}/*** Filters empty elements out of a route array, excluding '0'.** @param array $var Either an array to filter, or value when in callback* @return mixed Either filtered array, or true/false when in callback* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::filter*/public static function filter(array $var) {return Hash::filter($var);}/*** Pushes the differences in $array2 onto the end of $array** @param array $array Original array* @param array $array2 Differences to push* @return array Combined array* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::pushDiff*/public static function pushDiff($array, $array2) {if (empty($array) && !empty($array2)) {return $array2;}if (!empty($array) && !empty($array2)) {foreach ($array2 as $key => $value) {if (!array_key_exists($key, $array)) {$array[$key] = $value;} else {if (is_array($value)) {$array[$key] = Set::pushDiff($array[$key], $array2[$key]);}}}}return $array;}/*** Maps the contents of the Set object to an object hierarchy.* Maintains numeric keys as arrays of objects** @param string $class A class name of the type of object to map to* @param string $tmp A temporary class name used as $class if $class is an array* @return object Hierarchical object* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::map*/public static function map($class = 'stdClass', $tmp = 'stdClass') {if (is_array($class)) {$val = $class;$class = $tmp;}if (empty($val)) {return null;}return Set::_map($val, $class);}/*** Maps the given value as an object. If $value is an object,* it returns $value. Otherwise it maps $value as an object of* type $class, and if primary assign _name_ $key on first array.* If $value is not empty, it will be used to set properties of* returned object (recursively). If $key is numeric will maintain array* structure** @param array &$array Array to map* @param string $class Class name* @param bool $primary whether to assign first array key as the _name_* @return mixed Mapped object*/protected static function _map(&$array, $class, $primary = false) {if ($class === true) {$out = new stdClass;} else {$out = new $class;}if (is_array($array)) {$keys = array_keys($array);foreach ($array as $key => $value) {if ($keys[0] === $key && $class !== true) {$primary = true;}if (is_numeric($key)) {if (is_object($out)) {$out = get_object_vars($out);}$out[$key] = Set::_map($value, $class);if (is_object($out[$key])) {if ($primary !== true && is_array($value) && Set::countDim($value, true) === 2) {if (!isset($out[$key]->_name_)) {$out[$key]->_name_ = $primary;}}}} elseif (is_array($value)) {if ($primary === true) {// @codingStandardsIgnoreStart Legacy junkif (!isset($out->_name_)) {$out->_name_ = $key;}// @codingStandardsIgnoreEnd$primary = false;foreach ($value as $key2 => $value2) {$out->{$key2} = Set::_map($value2, true);}} else {if (!is_numeric($key)) {$out->{$key} = Set::_map($value, true, $key);if (is_object($out->{$key}) && !is_numeric($key)) {if (!isset($out->{$key}->_name_)) {$out->{$key}->_name_ = $key;}}} else {$out->{$key} = Set::_map($value, true);}}} else {$out->{$key} = $value;}}} else {$out = $array;}return $out;}/*** Checks to see if all the values in the array are numeric** @param array $array The array to check. If null, the value of the current Set object* @return bool true if values are numeric, false otherwise* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::numeric*/public static function numeric($array = null) {return Hash::numeric($array);}/*** Return a value from an array list if the key exists.** If a comma separated $list is passed arrays are numeric with the key of the first being 0* $list = 'no, yes' would translate to $list = array(0 => 'no', 1 => 'yes');** If an array is used, keys can be strings example: array('no' => 0, 'yes' => 1);** $list defaults to 0 = no 1 = yes if param is not passed** @param string $select Key in $list to return* @param array|string $list can be an array or a comma-separated list.* @return string the value of the array key or null if no match* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::enum*/public static function enum($select, $list = null) {if (empty($list)) {$list = array('no', 'yes');}$return = null;$list = Set::normalize($list, false);if (array_key_exists($select, $list)) {$return = $list[$select];}return $return;}/*** 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, see 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 $format* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::format*/public static function format($data, $format, $keys) {$extracted = array();$count = count($keys);if (!$count) {return;}for ($i = 0; $i < $count; $i++) {$extracted[] = Set::extract($data, $keys[$i]);}$out = array();$data = $extracted;$count = count($data[0]);if (preg_match_all('/\{([0-9]+)\}/msi', $format, $keys2) && isset($keys2[1])) {$keys = $keys2[1];$format = preg_split('/\{([0-9]+)\}/msi', $format);$count2 = count($format);for ($j = 0; $j < $count; $j++) {$formatted = '';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[] = $formatted;}} else {$count2 = count($data);for ($j = 0; $j < $count; $j++) {$args = array();for ($i = 0; $i < $count2; $i++) {if (array_key_exists($j, $data[$i])) {$args[] = $data[$i][$j];}}$out[] = vsprintf($format, $args);}}return $out;}/*** Implements partial support for XPath 2.0. If $path does not contain a '/' the call* is delegated to Set::classicExtract(). Also the $path and $data arguments are* reversible.** #### Currently implemented selectors:** - /User/id (similar to the classic {n}.User.id)* - /User[2]/name (selects the name of the second User)* - /User[id>2] (selects all Users with an id > 2)* - /User[id>2][<5] (selects all Users with an id > 2 but < 5)* - /Post/Comment[author_name=john]/../name (Selects the name of all Posts that have at least one Comment written by john)* - /Posts[name] (Selects all Posts that have a 'name' key)* - /Comment/.[1] (Selects the contents of the first comment)* - /Comment/.[:last] (Selects the last comment)* - /Comment/.[:first] (Selects the first comment)* - /Comment[text=/cakephp/i] (Selects the all comments that have a text matching the regex /cakephp/i)* - /Comment/@* (Selects the all key names of all comments)** #### Other limitations:** - Only absolute paths starting with a single '/' are supported right now** **Warning**: Even so it has plenty of unit tests the XPath support has not gone through a lot of* real-world testing. Please report Bugs as you find them. Suggestions for additional features to* implement are also very welcome!** @param string $path An absolute XPath 2.0 path* @param array $data An array of data to extract from* @param array $options Currently only supports 'flatten' which can be disabled for higher XPath-ness* @return mixed An array of matched items or the content of a single selected item or null in any of these cases: $path or $data are null, no items found.* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::extract*/public static function extract($path, $data = null, $options = array()) {if (is_string($data)) {$tmp = $data;$data = $path;$path = $tmp;}if (strpos($path, '/') === false) {return Set::classicExtract($data, $path);}if (empty($data)) {return array();}if ($path === '/') {return $data;}$contexts = $data;$options += array('flatten' => true);if (!isset($contexts[0])) {$current = current($data);if ((is_array($current) && count($data) < 1) || !is_array($current) || !Set::numeric(array_keys($data))) {$contexts = array($data);}}$tokens = array_slice(preg_split('/(?<!=|\\\\)\/(?![a-z-\s]*\])/', $path), 1);do {$token = array_shift($tokens);$conditions = false;if (preg_match_all('/\[([^=]+=\/[^\/]+\/|[^\]]+)\]/', $token, $m)) {$conditions = $m[1];$token = substr($token, 0, strpos($token, '['));}$matches = array();foreach ($contexts as $key => $context) {if (!isset($context['trace'])) {$context = array('trace' => array(null), 'item' => $context, 'key' => $key);}if ($token === '..') {if (count($context['trace']) === 1) {$context['trace'][] = $context['key'];}$parent = implode('/', $context['trace']) . '/.';$context['item'] = Set::extract($parent, $data);$context['key'] = array_pop($context['trace']);if (isset($context['trace'][1]) && $context['trace'][1] > 0) {$context['item'] = $context['item'][0];} elseif (!empty($context['item'][$key])) {$context['item'] = $context['item'][$key];} else {$context['item'] = array_shift($context['item']);}$matches[] = $context;continue;}if ($token === '@*' && is_array($context['item'])) {$matches[] = array('trace' => array_merge($context['trace'], (array)$key),'key' => $key,'item' => array_keys($context['item']),);} elseif (is_array($context['item'])&& array_key_exists($token, $context['item'])&& !(strval($key) === strval($token) && count($tokens) === 1 && $tokens[0] === '.')) {$items = $context['item'][$token];if (!is_array($items)) {$items = array($items);} elseif (!isset($items[0])) {$current = current($items);$currentKey = key($items);if (!is_array($current) || (is_array($current) && count($items) <= 1 && !is_numeric($currentKey))) {$items = array($items);}}foreach ($items as $key => $item) {$ctext = array($context['key']);if (!is_numeric($key)) {$ctext[] = $token;$tok = array_shift($tokens);if (isset($items[$tok])) {$ctext[] = $tok;$item = $items[$tok];$matches[] = array('trace' => array_merge($context['trace'], $ctext),'key' => $tok,'item' => $item,);break;} elseif ($tok !== null) {array_unshift($tokens, $tok);}} else {$key = $token;}$matches[] = array('trace' => array_merge($context['trace'], $ctext),'key' => $key,'item' => $item,);}} elseif ($key === $token || (ctype_digit($token) && $key == $token) || $token === '.') {$context['trace'][] = $key;$matches[] = array('trace' => $context['trace'],'key' => $key,'item' => $context['item'],);}}if ($conditions) {foreach ($conditions as $condition) {$filtered = array();$length = count($matches);foreach ($matches as $i => $match) {if (Set::matches(array($condition), $match['item'], $i + 1, $length)) {$filtered[$i] = $match;}}$matches = $filtered;}}$contexts = $matches;if (empty($tokens)) {break;}} while (1);$r = array();foreach ($matches as $match) {if ((!$options['flatten'] || is_array($match['item'])) && !is_int($match['key'])) {$r[] = array($match['key'] => $match['item']);} else {$r[] = $match['item'];}}return $r;}/*** This function can be used to see if a single item or a given xpath match certain conditions.** @param string|array $conditions An array of condition strings or an XPath expression* @param array $data An array of data to execute the match on* @param int $i Optional: The 'nth'-number of the item being matched.* @param int $length Length.* @return bool* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::matches*/public static function matches($conditions, $data = array(), $i = null, $length = null) {if (empty($conditions)) {return true;}if (is_string($conditions)) {return (bool)Set::extract($conditions, $data);}foreach ($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 != $condition) {return false;}} elseif (preg_match_all('/(?:^[0-9]+|(?<=,)[0-9]+)/', $condition, $matches)) {return in_array($i, $matches[0]);} elseif (!array_key_exists($condition, $data)) {return false;}continue;}list(, $key, $op, $expected) = $match;if (!(isset($data[$key]) || array_key_exists($key, $data))) {return false;}$val = $data[$key];if ($op === '=' && $expected && $expected{0} === '/') {return preg_match($expected, $val);}if ($op === '=' && $val != $expected) {return false;}if ($op === '!=' && $val == $expected) {return false;}if ($op === '>' && $val <= $expected) {return false;}if ($op === '<' && $val >= $expected) {return false;}if ($op === '<=' && $val > $expected) {return false;}if ($op === '>=' && $val < $expected) {return false;}}return true;}/*** Gets a value from an array or object that is contained in a given path using an array path syntax, i.e.:* "{n}.Person.{[a-z]+}" - Where "{n}" represents a numeric key, "Person" represents a string literal,* and "{[a-z]+}" (i.e. any string literal enclosed in brackets besides {n} and {s}) is interpreted as* a regular expression.** @param array $data Array from where to extract* @param string|array $path As an array, or as a dot-separated string.* @return mixed An array of matched items or the content of a single selected item or null in any of these cases: $path or $data are null, no items found.* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::classicExtract*/public static function classicExtract($data, $path = null) {if (empty($path)) {return $data;}if (is_object($data)) {if (!($data instanceof ArrayAccess || $data instanceof Traversable)) {$data = get_object_vars($data);}}if (empty($data)) {return null;}if (is_string($path) && strpos($path, '{') !== false) {$path = String::tokenize($path, '.', '{', '}');} elseif (is_string($path)) {$path = explode('.', $path);}$tmp = array();if (empty($path)) {return null;}foreach ($path as $i => $key) {if (is_numeric($key) && intval($key) > 0 || $key === '0') {if (isset($data[$key])) {$data = $data[$key];} else {return null;}} elseif ($key === '{n}') {foreach ($data as $j => $val) {if (is_int($j)) {$tmpPath = array_slice($path, $i + 1);if (empty($tmpPath)) {$tmp[] = $val;} else {$tmp[] = Set::classicExtract($val, $tmpPath);}}}return $tmp;} elseif ($key === '{s}') {foreach ($data as $j => $val) {if (is_string($j)) {$tmpPath = array_slice($path, $i + 1);if (empty($tmpPath)) {$tmp[] = $val;} else {$tmp[] = Set::classicExtract($val, $tmpPath);}}}return $tmp;} elseif (strpos($key, '{') !== false && strpos($key, '}') !== false) {$pattern = substr($key, 1, -1);foreach ($data as $j => $val) {if (preg_match('/^' . $pattern . '/s', $j) !== 0) {$tmpPath = array_slice($path, $i + 1);if (empty($tmpPath)) {$tmp[$j] = $val;} else {$tmp[$j] = Set::classicExtract($val, $tmpPath);}}}return $tmp;} else {if (isset($data[$key])) {$data = $data[$key];} else {return null;}}}return $data;}/*** Inserts $data into an array as defined by $path.** @param array $list Where to insert into* @param string $path A dot-separated string.* @param array $data Data to insert* @return array* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::insert*/public static function insert($list, $path, $data = null) {return Hash::insert($list, $path, $data);}/*** Removes an element from a Set or array as defined by $path.** @param array $list From where to remove* @param string $path A dot-separated string.* @return array Array with $path removed from its value* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::remove*/public static function remove($list, $path = null) {return Hash::remove($list, $path);}/*** Checks if a particular path is set in an array** @param string|array $data Data to check on* @param string|array $path A dot-separated string.* @return bool true if path is found, false otherwise* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::check*/public static function check($data, $path = null) {if (empty($path)) {return $data;}if (!is_array($path)) {$path = explode('.', $path);}foreach ($path as $i => $key) {if (is_numeric($key) && intval($key) > 0 || $key === '0') {$key = intval($key);}if ($i === count($path) - 1) {return (is_array($data) && array_key_exists($key, $data));}if (!is_array($data) || !array_key_exists($key, $data)) {return false;}$data =& $data[$key];}return true;}/*** Computes the difference between a Set and an array, two Sets, or two arrays** @param mixed $val1 First value* @param mixed $val2 Second value* @return array Returns the key => value pairs that are not common in $val1 and $val2* The expression for this function is($val1 - $val2) + ($val2 - ($val1 - $val2))* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::diff*/public static function diff($val1, $val2 = null) {if (empty($val1)) {return (array)$val2;}if (empty($val2)) {return (array)$val1;}$intersection = array_intersect_key($val1, $val2);while (($key = key($intersection)) !== null) {if ($val1[$key] == $val2[$key]) {unset($val1[$key]);unset($val2[$key]);}next($intersection);}return $val1 + $val2;}/*** Determines if one Set or array contains the exact keys and values of another.** @param array $val1 First value* @param array $val2 Second value* @return bool true if $val1 contains $val2, false otherwise* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::contains*/public static function contains($val1, $val2 = null) {if (empty($val1) || empty($val2)) {return false;}foreach ($val2 as $key => $val) {if (is_numeric($key)) {Set::contains($val, $val1);} else {if (!isset($val1[$key]) || $val1[$key] != $val) {return false;}}}return true;}/*** Counts the dimensions of an array. If $all is set to false (which is the default) it will* only consider the dimension of the first element in the array.** @param array $array Array to count dimensions on* @param bool $all Set to true to count the dimension considering all elements in array* @param int $count Start the dimension count at this number* @return int The number of dimensions in $array* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::countDim*/public static function countDim($array, $all = false, $count = 0) {if ($all) {$depth = array($count);if (is_array($array) && reset($array) !== false) {foreach ($array as $value) {$depth[] = Set::countDim($value, true, $count + 1);}}$return = max($depth);} else {if (is_array(reset($array))) {$return = Set::countDim(reset($array)) + 1;} else {$return = 1;}}return $return;}/*** Normalizes a string or array list.** @param mixed $list List to normalize* @param bool $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 bool $trim If true, separated strings will be trimmed* @return array* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::normalize*/public static function normalize($list, $assoc = true, $sep = ',', $trim = true) {if (is_string($list)) {$list = explode($sep, $list);if ($trim) {foreach ($list as $key => $value) {$list[$key] = trim($value);}}if ($assoc) {return Hash::normalize($list);}} elseif (is_array($list)) {$list = Hash::normalize($list, $assoc);}return $list;}/*** Creates an associative array using a $path1 as the path to build its keys, and optionally* $path2 as path to get the values. If $path2 is not specified, all values will be initialized* to null (useful for Set::merge). You can optionally group the values by what is obtained when* following the path specified in $groupPath.** @param array|object $data Array or object from where to extract keys and values* @param string|array $path1 As an array, or as a dot-separated string.* @param string|array $path2 As an array, or as a dot-separated string.* @param string $groupPath As an array, or as a dot-separated string.* @return array Combined array* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::combine*/public static function combine($data, $path1 = null, $path2 = null, $groupPath = null) {if (empty($data)) {return array();}if (is_object($data)) {if (!($data instanceof ArrayAccess || $data instanceof Traversable)) {$data = get_object_vars($data);}}if (is_array($path1)) {$format = array_shift($path1);$keys = Set::format($data, $format, $path1);} else {$keys = Set::extract($data, $path1);}if (empty($keys)) {return array();}if (!empty($path2) && is_array($path2)) {$format = array_shift($path2);$vals = Set::format($data, $format, $path2);} elseif (!empty($path2)) {$vals = Set::extract($data, $path2);} else {$count = count($keys);for ($i = 0; $i < $count; $i++) {$vals[$i] = null;}}if ($groupPath) {$group = Set::extract($data, $groupPath);if (!empty($group)) {$c = count($keys);for ($i = 0; $i < $c; $i++) {if (!isset($group[$i])) {$group[$i] = 0;}if (!isset($out[$group[$i]])) {$out[$group[$i]] = array();}$out[$group[$i]][$keys[$i]] = $vals[$i];}return $out;}}if (empty($vals)) {return array();}return array_combine($keys, $vals);}/*** Converts an object into an array.** @param object $object Object to reverse* @return array Array representation of given object* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::reverse*/public static function reverse($object) {$out = array();if ($object instanceof SimpleXMLElement) {return Xml::toArray($object);} elseif (is_object($object)) {$keys = get_object_vars($object);if (isset($keys['_name_'])) {$identity = $keys['_name_'];unset($keys['_name_']);}$new = array();foreach ($keys as $key => $value) {if (is_array($value)) {$new[$key] = (array)Set::reverse($value);} else {// @codingStandardsIgnoreStart Legacy junkif (isset($value->_name_)) {$new = array_merge($new, Set::reverse($value));} else {$new[$key] = Set::reverse($value);}// @codingStandardsIgnoreEnd}}if (isset($identity)) {$out[$identity] = $new;} else {$out = $new;}} elseif (is_array($object)) {foreach ($object as $key => $value) {$out[$key] = Set::reverse($value);}} else {$out = $object;}return $out;}/*** Collapses a multi-dimensional array into a single dimension, using a delimited array path for* each array element's key, i.e. array(array('Foo' => array('Bar' => 'Far'))) becomes* array('0.Foo.Bar' => 'Far').** @param array $data Array to flatten* @param string $separator String used to separate array key elements in a path, defaults to '.'* @return array* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::flatten*/public static function flatten($data, $separator = '.') {return Hash::flatten($data, $separator);}/*** Expand/unflattens an string to an array** For example, unflattens an array that was collapsed with `Set::flatten()`* into a multi-dimensional array. So, `array('0.Foo.Bar' => 'Far')` becomes* `array(array('Foo' => array('Bar' => 'Far')))`.** @param array $data Flattened array* @param string $separator The delimiter used* @return array*/public static function expand($data, $separator = '.') {return Hash::expand($data, $separator);}/*** Flattens an array for sorting** @param array $results Array to flatten.* @param string $key Key.* @return array*/protected static function _flatten($results, $key = null) {$stack = array();foreach ($results as $k => $r) {$id = $k;if ($key !== null) {$id = $key;}if (is_array($r) && !empty($r)) {$stack = array_merge($stack, Set::_flatten($r, $id));} else {$stack[] = array('id' => $id, 'value' => $r);}}return $stack;}/*** Sorts an array by any value, determined by a Set-compatible path** @param array $data An array of data to sort* @param string $path A Set-compatible path to the array value* @param string $dir Direction of sorting - either ascending (ASC), or descending (DESC)* @return array Sorted array of data* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::sort*/public static function sort($data, $path, $dir) {if (empty($data)) {return $data;}$originalKeys = array_keys($data);$numeric = false;if (is_numeric(implode('', $originalKeys))) {$data = array_values($data);$numeric = true;}$result = Set::_flatten(Set::extract($data, $path));list($keys, $values) = array(Set::extract($result, '{n}.id'), Set::extract($result, '{n}.value'));$dir = strtolower($dir);if ($dir === 'asc') {$dir = SORT_ASC;} elseif ($dir === 'desc') {$dir = SORT_DESC;}array_multisort($values, $dir, $keys, $dir);$sorted = array();$keys = array_unique($keys);foreach ($keys as $k) {if ($numeric) {$sorted[] = $data[$k];} else {if (isset($originalKeys[$k])) {$sorted[$originalKeys[$k]] = $data[$originalKeys[$k]];} else {$sorted[$k] = $data[$k];}}}return $sorted;}/*** Allows the application of a callback method to elements of an* array extracted by a Set::extract() compatible path.** @param mixed $path Set-compatible path to the array value* @param array $data An array of data to extract from & then process with the $callback.* @param mixed $callback Callback method to be applied to extracted data.* See http://ca2.php.net/manual/en/language.pseudo-types.php#language.types.callback for examples* of callback formats.* @param array $options Options are:* - type : can be pass, map, or reduce. Map will handoff the given callback* to array_map, reduce will handoff to array_reduce, and pass will* use call_user_func_array().* @return mixed Result of the callback when applied to extracted data* @link http://book.cakephp.org/2.0/en/core-utility-libraries/set.html#Set::apply*/public static function apply($path, $data, $callback, $options = array()) {$defaults = array('type' => 'pass');$options += $defaults;$extracted = Set::extract($path, $data);if ($options['type'] === 'map') {return array_map($callback, $extracted);} elseif ($options['type'] === 'reduce') {return array_reduce($extracted, $callback);} elseif ($options['type'] === 'pass') {return call_user_func_array($callback, array($extracted));}return null;}/*** Takes in a flat array and returns a nested array** @param mixed $data Data* @param array $options Options are:* children - the key name to use in the resultset for children* idPath - the path to a key that identifies each entry* parentPath - the path to a key that identifies the parent of each entry* root - the id of the desired top-most result* @return array of results, nested* @link*/public static function nest($data, $options = array()) {if (!$data) {return $data;}$alias = key(current($data));$options += array('idPath' => "/$alias/id",'parentPath' => "/$alias/parent_id",'children' => 'children','root' => null);$return = $idMap = array();$ids = Set::extract($data, $options['idPath']);$idKeys = explode('/', trim($options['idPath'], '/'));$parentKeys = explode('/', trim($options['parentPath'], '/'));foreach ($data as $result) {$result[$options['children']] = array();$id = Set::get($result, $idKeys);$parentId = Set::get($result, $parentKeys);if (isset($idMap[$id][$options['children']])) {$idMap[$id] = array_merge($result, (array)$idMap[$id]);} else {$idMap[$id] = array_merge($result, array($options['children'] => array()));}if (!$parentId || !in_array($parentId, $ids)) {$return[] =& $idMap[$id];} else {$idMap[$parentId][$options['children']][] =& $idMap[$id];}}if ($options['root']) {$root = $options['root'];} else {$root = Set::get($return[0], $parentKeys);}foreach ($return as $i => $result) {$id = Set::get($result, $idKeys);$parentId = Set::get($result, $parentKeys);if ($id !== $root && $parentId != $root) {unset($return[$i]);}}return array_values($return);}/*** Return the value at the specified position** @param array $input an array* @param string|array $path string or array of array keys* @return the value at the specified position or null if it doesn't exist*/public static function get($input, $path = null) {if (is_string($path)) {if (strpos($path, '/') !== false) {$keys = explode('/', trim($path, '/'));} else {$keys = explode('.', trim($path, '.'));}} else {$keys = $path;}return Hash::get($input, $keys);}}