这篇文章主要介绍了php专用数组排序类ArraySortUtil用法,实例分析了ArraySortUtil实现数组排序的方法与对应使用技巧,需要的朋友可以参考下。

本文实例讲述了php专用数组排序类ArraySortUtil用法，分享给大家供大家参考，具体如下：

1. **
2. * ArraySortUtil is a array sort utility, you can extends the sorting engine.
3. *
4. * @version 0.1
5. * @package utility.sort
6. */
7. class ArraySortUtil
8. {
9. static function uasort($unsort, $fields)
10. {
11. if ( !is_array($unsort) || sizeof($unsort) <= 0 ) return $unsort;
12. $sorted = uasortEngine::uasort($unsort, $fields);
13. return $sorted;
14. }
15. static function multisort($unsort, $fields)
16. {
17. if ( !is_array($unsort) || sizeof($unsort) <= 0 ) return $unsort;
18. $sorted = multisortEngine::multisort($unsort, $fields);
19. return $sorted;
20. }
21. }
22. class multisortEngine
23. {
24. static function multisort($unsort, $fields)
25. {
26. $sorted = $unsort;
27. if (is_array($unsort))
28. {
29. $loadFields = array();
30. foreach($fields as $sortfield)
31. {
32. $loadFields["field"][] = array(
33. "name" => $sortfield["field"],
34. "order" => $sortfield["order"],
35. "nature" => $sortfield["nature"],
36. "caseSensitve" => $sortfield["caseSensitve"]
37. );
38. $loadFields["data"][$field["field"]] = array();
39. }
40. // Obtain a list of columns
41. foreach ($sorted as $key => $row) {
42. foreach($loadFields["field"] as $field) {
43. $value = $row[$field["name"]];
44. $loadFields["data"][$field["name"]][$key] = $value;
45. }
46. }
47. $parameters = array();
48. foreach($loadFields["field"] as $sortfield) {
49. $array_data = $loadFields["data"][$sortfield["name"]];
50. $caseSensitve = ( $sortfield["caseSensitve"] == null ) ? $sortfield["caseSensitve"] : false;
51. if (!$caseSensitve) $array_data = array_map('strtolower', $array_data);
52. $parameters[] = $array_data;
53. if ( $sortfield["order"] != null ) $parameters[] = ( $sortfield["order"] ) ? SORT_DESC : SORT_ASC;
54. if ( $sortfield["nature"] != null ) $parameters[] = ( $sortfield["nature"] ) ? SORT_REGULAR : SORT_STRING;
55. }
56. $parameters[] = &$sorted;
57. call_user_func_array("array_multisort", $parameters);
58. }
59. return $sorted;
60. }
61. }
62. class uasortEngine
63. {
64. static private $caseSensitve = false;
65. static private $sortfields = array();
66. static private $sortorder = true;
67. static private $nature = false;
68. static private function uasort_callback(&$a, &$b)
69. {
70. foreach(self::$sortfields as $sortfield)
71. {
72. $_field = $sortfield["field"];
73. $_order = isset($sortfield["order"]) ? $sortfield["order"] : self::$sortorder;
74. $_caseSensitve = isset($sortfield["caseSensitve"]) ? $sortfield["caseSensitve"] : self::$caseSensitve;
75. $_nature = isset($sortfield["nature"]) ? $sortfield["nature"] : self::$nature;
76. if ($_field != "")
77. {
78. $retval = 0;
79. if ($_nature)
80. {
81. if ($_caseSensitve)
82. {
83. $compare = strnatcmp($a[$_field], $b[$_field]);
84. }
85. else
86. {
87. $compare = strnatcasecmp($a[$_field], $b[$_field]);
88. }
89. }
90. else
91. {
92. if ($_caseSensitve)
93. {
94. $compare = strcmp($a[$_field], $b[$_field]);
95. }
96. else
97. {
98. $compare = strcasecmp($a[$_field], $b[$_field]);
99. }
100. }
101. if ($compare !== 0 && !$_order) $compare = ($compare > 0) ? -1 : 1;
102. }
103. if ($compare !== 0) break;
104. }
105. return $compare;
106. }
107. static function uasort($unsort, $fields)
108. {
109. self::$sortfields = $fields;
110. $sorted = $unsort;
111. uasort($sorted, array('uasortEngine', 'uasort_callback'));
112. return $sorted;
113. }
114. }

使用范例如下：

1. <?php
2. require_once('class.ArraySortUtil.php');
3. // declare test data
4. $assetData[] = array("id" => 1, "category"=>"Hardware", "subcategory"=>"Personal Computer", "supplier" => "DELL", "particular"=>"Vostro 1320", "purchase_price"=>2300, "other_charges"=>500);
5. $assetData[] = array("id" => 2, "category"=>"Hardware", "subcategory"=>"Personal Computer", "supplier" => "DELL", "particular"=>"Vostro 1420", "purchase_price"=>2500, "other_charges"=>0);
6. $assetData[] = array("id" => 3, "category"=>"Hardware", "subcategory"=>"Laptop", "supplier" => "DELL", "particular"=>"Vostro 1520", "purchase_price"=>4500, "other_charges"=>100);
7. $assetData[] = array("id" => 4, "category"=>"Hardware", "subcategory"=>"Laptop", "supplier" => "Acer", "particular"=>"Apire One", "purchase_price"=>2500, "other_charges"=>200);
8. $assetData[] = array("id" => 5, "category"=>"Furniture", "subcategory"=>"Table", "supplier" => "CHEN", "particular"=>"Manager Table", "purchase_price"=>1000, "other_charges"=>0);
9. $assetData[] = array("id" => 6, "category"=>"Furniture", "subcategory"=>"Table", "supplier" => "CHEN", "particular"=>"Staff Table", "purchase_price"=>500, "other_charges"=>0);
10. $assetData[] = array("id" => 7, "category"=>"Furniture", "subcategory"=>"Chair", "supplier" => "CHEN", "particular"=>"Staff Chair", "purchase_price"=>500, "other_charges"=>0);
11. $sorted = ArraySortUtil::multisort($assetData, array(
12. array("field"=>"category"),
13. array("field"=>"subcategory", "order" => true) // desc
14. ));
15. echo "<h1>multisort:result</h1>";
16. echo "<pre>";
17. print_r($sorted);
18. echo "</pre>";
19. $sorted = ArraySortUtil::uasort($assetData, array(
20. array("field"=>"category"),
21. array("field"=>"subcategory", "order" => true) // desc
22. ));
23. echo "<h1>uasort:result</h1>";
24. echo "<pre>";
25. print_r($sorted);
26. echo "</pre>";

希望本文所述对大家的php程序设计有所帮助。