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<?php
/**
* ChronoCMS version 1.0
* Copyright (c) 2012 ChronoCMS.com, All rights reserved.
* Author: (ChronoCMS.com Team)
* license: Please read LICENSE.txt
* Visit http://www.ChronoCMS.com for regular updates and information.
**/
namespace GCore\Libs;
/* @copyright:ChronoEngine.com @license:GPLv2 */defined('_JEXEC') or die('Restricted access');
defined("GCORE_SITE") or die;
class Arr {
//is assoc array
public static function is_assoc($arr){
return (bool)count(array_filter(array_keys($arr), 'is_string'));
}
//normalizes a multi dimensional array into 1 dimension
public static function normalize($array = array()){
$return = array();
foreach($array as $k => $v){
if(is_array($v)){
$return = array_merge(self::normalize($v), $return);
}else{
$return[] = $v;
}
}
return $return;
}
//extract the value at the supplied path from the supplied data array
public static function getVal($array, $indexes = array(), $default = NULL){
if(empty($indexes)){
return $array;
}
if(count($indexes) == 1){
if(is_array($array) AND isset($array[$indexes[0]])){
return $array[$indexes[0]];
}else{
//return $default;
}
}
$index = array_shift($indexes);
if($index == '[n]' AND is_array($array)){
//indexed numeric loop
$data_array = array();
foreach($array as $k => $v){
$data_array[$k] = self::getVal($array[$k], $indexes, $default);
}
return $data_array;
}else{
if(isset($array[$index])){
return self::getVal($array[$index], $indexes, $default);
}else{
return $default;
}
}
}
//set some array value at the given path and return the modified array back
public static function setVal($array, $indexes, $value){
if(is_array($array)){
eval('$array["'.implode('"]["', $indexes).'"] = $value;');
}
return $array;
}
//flatten multi dimensional array
public static function flatten($array, $preserve_keys = 0, &$out = array()){
foreach($array as $key => $child){
if(is_array($child)){
$out = self::flatten($child, $preserve_keys, $out);
}elseif($preserve_keys + is_string($key) > 1){
$out[$key] = $child;
}else{
$out[] = $child;
}
}
return $out;
}
//search array for the given value
public static function searchVal($array, $indexes, $values = array()){
$values = (array)$values;
if(count($indexes) == 1){
if(is_array($array) AND isset($array[$indexes[0]]) AND in_array($array[$indexes[0]], $values)){
return $array;
}else{
return array();
}
}
$index = array_shift($indexes);
if($index == "[n]" AND is_array($array)){
//indexed numeric loop
$data_array = array();
foreach($array as $k => $v){
$data_array[$k] = self::searchVal($array[$k], $indexes, $values);
}
return array_filter($data_array);
}else{
if(isset($array[$index])){
return self::searchVal($array[$index], $indexes, $values);
}else{
return array();
}
}
}
public static function multisort($array, $path = '', $flag = SORT_ASC){
$temp = array();
foreach($array as $k => $item){
$temp[$k] = self::getVal($item, explode('.', $path), null);
}
array_multisort($temp, $flag, $array);
return $array;
}
//private static function
/*public static function __search($array, $params = array('value' => '')){
$results = array();
if(is_array($array)){
$value = $params['value'];
if(isset($params['key'])){
$key = $params['key'];
if(isset($array[$key]) AND $array[$key] == $value){
$results[] = $array;
}
}else{
foreach($array as $k => $v){
if($v == $value){
$results[] = $array;
}
}
}
foreach($array as $subarray){
$results = array_merge($results, self::search($subarray, $params));
}
}
return $results;
}*/
}
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