php 無限級分類函數_PHP教程

ar=array(0=>array('name'=>'食物','id'=>1,'pid'=>0),

02 1=>array('name'=>'植物','id'=>2,'pid'=>0),

03 3=>array('name'=>'白菜','id'=>3,'pid'=>1),

04 4=>array('name'=>'樹','id'=>4,'pid'=>2),

05 5=>array('name'=>'蘋果','id'=>5,'pid'=>3),

06 6=>array('name'=>'松樹','id'=>6,'pid'=>4),

07 7=>array('name'=>'飲料','id'=>7,'pid'=>1),

08 8=>array('name'=>'測試1','id'=>8,'pid'=>7),

09 9=>array('name'=>'測試2','id'=>9,'pid'=>8),

10 10=>array('name'=>'人民','id'=>10,'pid'=>9),

11 11=>array('name'=>'小米','id'=>11,'pid'=>0),

12 );

13

14 echo '

15 tre($ar,0);

16 echo '

'; ';

17

18 function tre($tree,$id)

19 {

20 $str = '';

21 $strid = '';

22 foreach ($tree as $key => $item)

23 {

24 if ($item['pid'] == $id) {

25 $i = 0;

26 $i = sonNum($tree,$item['id']);

27 if ($i == 1 || $i == 0) {

28 echo '';

29 } else {

30 echo '';

31 }

32 //echo '';

33 echo $item['name'];

34 echo '';

35 tre($tree,$item['id']);

36 }

37 }

38 //tre($tree,$strid);

39 }

40

41 function sonNum($tre,$sum,$totale=1)

42 {

43 foreach ($tre as $key => $value)

44 {

45 if ($value['pid'] == $sum){

46 $totale += sonNum($tre,$value['id'],1);

47 }

48 }

49 return $totale;

50 }

http://www.bkjia.com/PHPjc/444952.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/444952.htmlTechArticlear=array(0=array('name'='食物','id'=1,'pid'=0), 02 1=array('name'='植物','id'=2,'pid'=0), 03 3=array('name'='白菜','id'=3,'pid'=1), 04 4=array('name'='樹','id'=4,'pid'=2), 0...

