PHP多维数组排序与操作函数,代码如下:

1. function arraycd($arr){
2. static $res_arr=array();
3. if(is_array($arr))
4. {
5. foreach($arr as $key=>$val)
6. {
7. if(is_array($val))
8. {
9. arraycd($val);
10. }else{
11. $res_arr[]=$val;
12. }
13. }
14. }elseif(is_string($arr))
15. {
16. $res_arr[]=$arr;
17. }
18. return implode(",",$res_arr);
19. }
20. $fruits = array (
21. "fruits" => array("a" => "orange", "b" => "banana", "c" => "apple"),
22. "numbers" => array(1, 2, 3, 4, 5, 6),
23. "holes" => array("first", 5 => "second", "third")
24. );
25. $strayy=arraycd($fruits);
26. var_dump($strayy);

看一个多维数组排序,代码如下:

1. function sortdata($data, $col, $order){
2. if (count($data)) $temp_array[key($data)] = array_shift($data);
3. foreach($data as $key => $val){
4. $offset = 0;
5. $found = false;
6. foreach($temp_array as $tmp_key => $tmp_val){
7. if(!$found and strtolower($val[$col]) >
8. strtolower($tmp_val[$col])){
9. $temp_array = array_merge((array)
10. array_slice($temp_array,0,$offset),
11. array($key => $val),
12. array_slice($temp_array,$offset)
13. );
14. $found = true;
15. }
16. $offset++;
17. }
18. if(!$found) {
19. $temp_array = array_merge($temp_array, array
20. ($key => $val));
21. }
22. }
23. if (strtolower($order)=="asc"){
24. $array = array_reverse($temp_array);
25. } else {
26. $array = $temp_array;
27. }
28. return $array;
29. }
30. 主函数
31. $data=array(
32. array(
33. 'name'=>'alice',
34. 'key'=>'2fc4ab3d639e5400efdfc73bc27e83f1',
35. 'age'=>20
36. ),
37. array(
38. 'name'=>'claudia',
39. 'key'=>'831c2b79c1f19af39c7e3321e11e5f5e',
40. 'age'=>18
41. ),
42. array(
43. 'name'=>'beatrice',
44. 'key'=>'6f8512a2066b8f35a27a495ce1228c76',
45. 'age'=>100
46. ),
47. array(
48. 'name'=>'denise',
49. 'age'=>25,
50. 'key'=>'ef6de3b178bf9f69a9fef72e4ee7bbe9'
51. )
52. );
53. $arr1 = sortdata($data, "name","asc");
54. echo "<pre>";
55. var_dump($arr1);
56. echo "</pre>";
57. $arr2 = sortdata($data, "age","desc");
58. echo "<pre>";
59. var_dump($arr2);
60. echo "</pre>";