Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/inc/lib/array.lib.php

117 lines
2.8 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* This is the array library for Chamilo.
* Include/require it in your code to use its functionality.
*
* @package chamilo.library
*/
/**
* Removes duplicate values from a dimensional array
*
* @param array a dimensional array
* @return array an array with unique values
*
*/
function array_unique_dimensional($array) {
if(!is_array($array))
return $array;
foreach ($array as &$myvalue) {
$myvalue=serialize($myvalue);
}
$array=array_unique($array);
foreach ($array as &$myvalue) {
$myvalue=unserialize($myvalue);
}
return $array;
}
/**
*
* Sort multidimensional arrays
*
* @param array unsorted multidimensional array
* @param string key to be sorted
* @return array result array
* @author found in http://php.net/manual/en/function.sort.php
*/
function msort($array, $id='id', $order = 'desc') {
if (empty($array)) {
return $array;
}
$temp_array = array();
while (count($array)>0) {
$lowest_id = 0;
$index=0;
foreach ($array as $item) {
if ($order == 'desc') {
if ($item[$id]<$array[$lowest_id][$id]) {
$lowest_id = $index;
}
} else {
if ($item[$id]>$array[$lowest_id][$id]) {
$lowest_id = $index;
}
}
$index++;
}
$temp_array[] = $array[$lowest_id];
$array = array_merge(array_slice($array, 0, $lowest_id), array_slice($array, $lowest_id+1));
}
return $temp_array;
}
function array_walk_recursive_limited(&$array, $function, $apply_to_keys_also = false) {
static $recursive_counter = 0;
if (++$recursive_counter > 1000) {
die('possible deep recursion attack');
}
foreach ($array as $key => $value) {
if (is_array($value)) {
array_walk_recursive_limited($array[$key], $function, $apply_to_keys_also);
} else {
$array[$key] = $function($value);
}
if ($apply_to_keys_also && is_string($key)) {
$new_key = $function($key);
if ($new_key != $key) {
$array[$new_key] = $array[$key];
unset($array[$key]);
}
}
}
$recursive_counter--;
}
function utf8_sort($array) {
$old_locale = setlocale(LC_ALL, null);
$code = api_get_language_isocode();
$locale_list = array($code.'.utf8', 'en.utf8','en_US.utf8','en_GB.utf8');
$try_sort = false;
foreach($locale_list as $locale) {
$my_local = setlocale(LC_COLLATE, $locale);
if ($my_local) {
$try_sort = true;
break;
}
}
if ($try_sort) {
uasort($array, 'strcoll');
}
setlocale(LC_COLLATE, $old_locale);
return $array;
}
function array_to_string($array, $separator = ',') {
if (empty($array)) {
return '';
}
return implode($separator.' ', $array);
}