/cake/libs/set.php
PHP | 1118 lines | 751 code | 49 blank | 318 comment | 241 complexity | c69191689cc0d277fa3b8dcf8b53766f MD5 | raw file
- <?php
- /* SVN FILE: $Id$ */
- /**
- * Library of array functions for Cake.
- *
- * PHP versions 4 and 5
- *
- * CakePHP(tm) : Rapid Development Framework (http://www.cakephp.org)
- * Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
- *
- * Licensed under The MIT License
- * Redistributions of files must retain the above copyright notice.
- *
- * @filesource
- * @copyright Copyright 2005-2008, Cake Software Foundation, Inc. (http://www.cakefoundation.org)
- * @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
- * @package cake
- * @subpackage cake.cake.libs
- * @since CakePHP(tm) v 1.2.0
- * @version $Revision$
- * @modifiedby $LastChangedBy$
- * @lastmodified $Date$
- * @license http://www.opensource.org/licenses/mit-license.php The MIT License
- */
- /**
- * Class used for manipulation of arrays.
- *
- * Long description for class
- *
- * @package cake
- * @subpackage cake.cake.libs
- */
- class Set extends Object {
- /**
- * Deprecated
- *
- */
- var $value = array();
- /**
- * 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). See the unit test for more information.
- *
- * Note: This function will work with an unlimited amount of arguments and typecasts non-array parameters into arrays.
- *
- * @param array $arr1 Array to be merged
- * @param array $arr2 Array to merge with
- * @return array Merged array
- * @access public
- * @static
- */
- function merge($arr1, $arr2 = null) {
- $args = func_get_args();
- $r = (array)current($args);
- while (($arg = next($args)) !== false) {
- foreach ((array)$arg as $key => $val) {
- if (is_array($val) && isset($r[$key]) && is_array($r[$key])) {
- $r[$key] = Set::merge($r[$key], $val);
- } elseif (is_int($key)) {
- $r[] = $val;
- } else {
- $r[$key] = $val;
- }
- }
- }
- return $r;
- }
- /**
- * Filters empty elements out of a route array, excluding '0'.
- *
- * @param mixed $var Either an array to filter, or value when in callback
- * @param boolean $isArray Force to tell $var is an array when $var is empty
- * @return mixed Either filtered array, or true/false when in callback
- * @access public
- * @static
- */
- function filter($var, $isArray = false) {
- if (is_array($var) && (!empty($var) || $isArray)) {
- return array_filter($var, array('Set', 'filter'));
- }
- if ($var === 0 || $var === '0' || !empty($var)) {
- return true;
- }
- return false;
- }
- /**
- * Pushes the differences in $array2 onto the end of $array
- *
- * @param mixed $array Original array
- * @param mixed $array2 Differences to push
- * @return array Combined array
- * @access public
- * @static
- */
- function pushDiff($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 $class is an array
- * @return object Hierarchical object
- * @access public
- * @static
- */
- function map($class = 'stdClass', $tmp = 'stdClass') {
- if (is_array($class)) {
- $val = $class;
- $class = $tmp;
- }
- if (empty($val)) {
- return null;
- }
- return Set::__map($val, $class);
- }
- /**
- * Get the array value of $array. If $array is null, it will return
- * the current array Set holds. If it is an object of type Set, it
- * will return its value. If it is another object, its object variables.
- * If it is anything else but an array, it will return an array whose first
- * element is $array.
- *
- * @param mixed $array Data from where to get the array.
- * @return array Array from $array.
- * @access private
- */
- function __array($array) {
- if (empty($array)) {
- $array = array();
- } elseif (is_object($array)) {
- $array = get_object_vars($array);
- } elseif (!is_array($array)) {
- $array = array($array);
- }
- return $array;
- }
- /**
- * 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 mixed $value Value to map
- * @param string $class Class name
- * @param boolean $primary whether to assign first array key as the _name_
- * @return mixed Mapped object
- * @access private
- * @static
- */
- function __map(&$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 ($primary === true) {
- if (!isset($out->_name_)) {
- $out->_name_ = $key;
- }
- $primary = false;
- foreach ($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 $array The array to check. If null, the value of the current Set object
- * @return boolean true if values are numeric, false otherwise
- * @access public
- * @static
- */
- function numeric($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;
- }
- /**
- * 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 mixed $select Key in $list to return
- * @param mixed $list can be an array or a comma-separated list.
- * @return string the value of the array key or null if no match
- * @access public
- * @static
- */
- function enum($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 $format
- * @access public
- * @static
- */
- function format($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; $i++) {
- if (isset($data[$i][$j])) {
- $args[] = $data[$i][$j];
- }
- }
- $out[] = vsprintf($format, $args);
- }
- }
- return $out;
- }
- /**
- * Implements partial support for XPath 2.0. If $path is an array or $data is empty it the call is delegated to Set::classicExtract.
- *
- * 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 imlement are also very welcome!
- *
- * @param string $path An absolute XPath 2.0 path
- * @param string $data An array of data to extract from
- * @param string $options Currently only supports 'flatten' which can be disabled for higher XPath-ness
- * @return array An array of matched items
- * @access public
- * @static
- */
- function extract($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_merge(array('flatten' => true), $options);
- if (!isset($contexts[0])) {
- $contexts = array($data);
- }
- $tokens = array_slice(preg_split('/(?<!=)\/(?![a-z-]*\])/', $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 = join('/', $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'] = $context['item'][0];
- } else if(!empty($context['item'][$key])){
- $context['item'] = $context['item'][$key];
- } else {
- $context['item'] = array_shift($context['item']);
- }
- $matches[] = $context;
- continue;
- }
- $match = false;
- if ($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'])) {
- $items = $context['item'][$token];
- if (!is_array($items)) {
- $items = array($items);
- } elseif (!isset($items[0])) {
- $current = current($items);
- if ((is_array($current) && count($items) <= 1) || !is_array($current)) {
- $items = array($items);
- }
- }
- foreach ($items as $key => $item) {
- $ctext = array($context['key']);
- if (!is_numeric($key)) {
- $ctext[] = $token;
- $token = array_shift($tokens);
- if (isset($items[$token])) {
- $ctext[] = $token;
- $item = $items[$token];
- $matches[] = array(
- 'trace' => array_merge($context['trace'], $ctext),
- 'key' => $key,
- 'item' => $item,
- );
- break;
- } else {
- array_unshift($tokens, $token);
- }
- } 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[] = $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 mixed $conditions An array of condition strings or an XPath expression
- * @param array $data An array of data to execute the match on
- * @param integer $i Optional: The 'nth'-number of the item being matched.
- * @return boolean
- * @access public
- * @static
- */
- function matches($conditions, $data = array(), $i = null, $length = null) {
- if (empty($conditions)) {
- return true;
- }
- if (is_string($conditions)) {
- return !!Set::extract($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])) {
- 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 mixed $path As an array, or as a dot-separated string.
- * @return array Extracted data
- * @access public
- * @static
- */
- function classicExtract($data, $path = null) {
- if (empty($path)) {
- return $data;
- }
- if (is_object($data)) {
- $data = get_object_vars($data);
- }
- if (!is_array($data)) {
- return $data;
- }
- if (!is_array($path)) {
- if (!class_exists('String')) {
- App::import('Core', 'String');
- }
- $path = String::tokenize($path, '.', '{', '}');
- }
- $tmp = array();
- if (!is_array($path) || empty($path)) {
- return null;
- }
- foreach ($path as $i => $key) {
- if (is_numeric($key) && intval($key) > 0 || $key === '0') {
- if (isset($data[intval($key)])) {
- $data = $data[intval($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 $tmp;
- } elseif (false !== strpos($key,'{') && false !== strpos($key,'}')) {
- $pattern = substr($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 mixed $list Where to insert into
- * @param mixed $path A dot-separated string.
- * @param array $data Data to insert
- * @return array
- * @access public
- * @static
- */
- function insert($list, $path, $data = null) {
- if (!is_array($path)) {
- $path = explode('.', $path);
- }
- $_list =& $list;
- foreach ($path as $i => $key) {
- if (is_numeric($key) && intval($key) > 0 || $key === '0') {
- $key = intval($key);
- }
- if ($i === count($path) - 1) {
- $_list[$key] = $data;
- } else {
- if (!isset($_list[$key])) {
- $_list[$key] = array();
- }
- $_list =& $_list[$key];
- }
- }
- return $list;
- }
- /**
- * Removes an element from a Set or array as defined by $path.
- *
- * @param mixed $list From where to remove
- * @param mixed $path A dot-separated string.
- * @return array Array with $path removed from its value
- * @access public
- * @static
- */
- function remove($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) && intval($key) > 0 || $key === '0') {
- $key = intval($key);
- }
- if ($i === count($path) - 1) {
- unset($_list[$key]);
- } else {
- if (!isset($_list[$key])) {
- return $list;
- }
- $_list =& $_list[$key];
- }
- }
- return $list;
- }
- /**
- * Checks if a particular path is set in an array
- *
- * @param mixed $data Data to check on
- * @param mixed $path A dot-separated string.
- * @return boolean true if path is found, false otherwise
- * @access public
- * @static
- */
- function check($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 $val2 Second value
- * @return array Computed difference
- * @access public
- * @static
- */
- function diff($val1, $val2 = null) {
- if (empty($val1)) {
- return (array)$val2;
- }
- if (empty($val2)) {
- return (array)$val1;
- }
- $out = array();
- foreach ($val1 as $key => $val) {
- $exists = array_key_exists($key, $val2);
- if ($exists && $val2[$key] != $val) {
- $out[$key] = $val;
- } elseif (!$exists) {
- $out[$key] = $val;
- }
- unset($val2[$key]);
- }
- foreach ($val2 as $key => $val) {
- if (!array_key_exists($key, $out)) {
- $out[$key] = $val;
- }
- }
- return $out;
- }
- /**
- * Determines if two Sets or arrays are equal
- *
- * @param array $val1 First value
- * @param array $val2 Second value
- * @return boolean true if they are equal, false otherwise
- * @access public
- * @static
- */
- function isEqual($val1, $val2 = null) {
- return ($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 boolean true if $val1 contains $val2, false otherwise
- * @access public
- * @static
- */
- function contains($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 boolean $all Set to true to count the dimension considering all elements in array
- * @param integer $count Start the dimension count at this number
- * @return integer The number of dimensions in $array
- * @access public
- * @static
- */
- function countDim($array = null, $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 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 $trim If true, separated strings will be trimmed
- * @return array
- * @access public
- * @static
- */
- function normalize($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 Set::normalize($list);
- }
- } elseif (is_array($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) {
- $newList = array();
- for ($i = 0; $i < $count; $i++) {
- if (is_int($keys[$i])) {
- $newList[$list[$keys[$i]]] = null;
- } else {
- $newList[$keys[$i]] = $list[$keys[$i]];
- }
- }
- $list = $newList;
- }
- }
- 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 $data Array from where to extract keys and values
- * @param mixed $path1 As an array, or as a dot-separated string.
- * @param mixed $path2 As an array, or as a dot-separated string.
- * @param string $groupPath As an array, or as a dot-separated string.
- * @return array Combined array
- * @access public
- * @static
- */
- function combine($data, $path1 = null, $path2 = null, $groupPath = null) {
- if (empty($data)) {
- return array();
- }
- if (is_object($data)) {
- $data = get_object_vars($data);
- }
- if (is_array($path1)) {
- $format = array_shift($path1);
- $keys = Set::format($data, $format, $path1);
- } else {
- $keys = Set::extract($data, $path1);
- }
- if (!empty($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 != null) {
- $group = Set::extract($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 $out;
- }
- }
- return array_combine($keys, $vals);
- }
- /**
- * Converts an object into an array. If $object is no object, reverse
- * will return the same value.
- *
- * @param object $object Object to reverse
- * @return array
- * @static
- */
- function reverse($object) {
- $out = array();
- if (is_a($object, 'XmlNode')) {
- $out = $object->toArray();
- return $out;
- } else if (is_object($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($value);
- } else {
- if (isset($value->_name_)) {
- $new = array_merge($new, Set::reverse($value));
- } else {
- $new[$key] = Set::reverse($value);
- }
- }
- }
- if (isset($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 $separator String used to separate array key elements in a path, defaults to '.'
- * @return array
- * @access public
- * @static
- */
- function flatten($data, $separator = '.') {
- $result = array();
- $path = null;
- if (is_array($separator)) {
- extract($separator, EXTR_OVERWRITE);
- }
- if (!is_null($path)) {
- $path .= $separator;
- }
- foreach ($data as $key => $val) {
- if (is_array($val)) {
- $result += (array)Set::flatten($val, array(
- 'separator' => $separator,
- 'path' => $path . $key
- ));
- } else {
- $result[$path . $key] = $val;
- }
- }
- return $result;
- }
- /**
- * Flattens an array for sorting
- *
- * @param array $results
- * @param string $key
- * @return array
- * @access private
- */
- function __flatten($results, $key = null) {
- $stack = array();
- foreach ($results as $k => $r) {
- $id = $k;
- if (!is_null($key)) {
- $id = $key;
- }
- if (is_array($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
- * @param string $path A Set-compatible path to the array value
- * @param string $dir asc/desc
- * @return array
- * @static
- */
- function sort($data, $path, $dir) {
- $result = Set::__flatten(Set::extract($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) {
- $sorted[] = $data[$k];
- }
- return $sorted;
- }
- /**
- * Deprecated, Set class should be called statically
- *
- */
- function &get() {
- trigger_error('get() is deprecated. Set class should be called statically', E_USER_WARNING);
- }
- }
- ?>