array.lib.php 3.0 KB

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  1. <?php
  2. /* For licensing terms, see /license.txt */
  3. /**
  4. * This is the array library for Chamilo.
  5. * Include/require it in your code to use its functionality.
  6. *
  7. * @package chamilo.library
  8. */
  9. /**
  10. * Removes duplicate values from a dimensional array
  11. *
  12. * @param array $array dimensional array
  13. * @return array an array with unique values
  14. *
  15. */
  16. function array_unique_dimensional($array)
  17. {
  18. if (!is_array($array)) {
  19. return $array;
  20. }
  21. foreach ($array as &$myvalue) {
  22. $myvalue = serialize($myvalue);
  23. }
  24. $array = array_unique($array);
  25. foreach ($array as &$myvalue) {
  26. $myvalue = unserialize($myvalue);
  27. }
  28. return $array;
  29. }
  30. /**
  31. *
  32. * Sort multidimensional arrays
  33. *
  34. * @param array unsorted multidimensional array
  35. * @param string key to be sorted
  36. * @return array result array
  37. * @author found in http://php.net/manual/en/function.sort.php
  38. */
  39. function msort($array, $id = 'id', $order = 'desc')
  40. {
  41. if (empty($array)) {
  42. return $array;
  43. }
  44. $temp_array = [];
  45. while (count($array) > 0) {
  46. $lowest_id = 0;
  47. $index = 0;
  48. foreach ($array as $item) {
  49. if ($order == 'desc') {
  50. if ($item[$id] < $array[$lowest_id][$id]) {
  51. $lowest_id = $index;
  52. }
  53. } else {
  54. if (isset($item[$id]) && $item[$id] > $array[$lowest_id][$id]) {
  55. $lowest_id = $index;
  56. }
  57. }
  58. $index++;
  59. }
  60. $temp_array[] = $array[$lowest_id];
  61. $array = array_merge(
  62. array_slice($array, 0, $lowest_id),
  63. array_slice($array, $lowest_id + 1)
  64. );
  65. }
  66. return $temp_array;
  67. }
  68. /**
  69. * @param $array
  70. * @return mixed
  71. */
  72. function utf8_sort($array)
  73. {
  74. $old_locale = setlocale(LC_ALL, null);
  75. $code = api_get_language_isocode();
  76. $locale_list = [$code.'.utf8', 'en.utf8', 'en_US.utf8', 'en_GB.utf8'];
  77. $try_sort = false;
  78. foreach ($locale_list as $locale) {
  79. $my_local = setlocale(LC_COLLATE, $locale);
  80. if ($my_local) {
  81. $try_sort = true;
  82. break;
  83. }
  84. }
  85. if ($try_sort) {
  86. uasort($array, 'strcoll');
  87. }
  88. setlocale(LC_COLLATE, $old_locale);
  89. return $array;
  90. }
  91. /**
  92. * @param array $array
  93. * @param string $separator
  94. * @return string
  95. */
  96. function array_to_string($array, $separator = ',')
  97. {
  98. if (empty($array)) {
  99. return '';
  100. }
  101. return implode($separator.' ', $array);
  102. }
  103. /**
  104. * @param array $array
  105. * @return array
  106. */
  107. function array_flatten(array $array)
  108. {
  109. $flatten = [];
  110. array_walk_recursive(
  111. $array,
  112. function ($value) use (&$flatten) {
  113. $flatten[] = $value;
  114. }
  115. );
  116. return $flatten;
  117. }
  118. /**
  119. * Shuffles an array keeping the associations
  120. * @param $array
  121. * @return bool
  122. */
  123. function shuffle_assoc(&$array)
  124. {
  125. $keys = array_keys($array);
  126. shuffle($keys);
  127. $new = [];
  128. foreach ($keys as $key) {
  129. $new[$key] = $array[$key];
  130. }
  131. $array = $new;
  132. return true;
  133. }