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无限级树状图可以说是无限级栏目的一个显著特征,我们接下来就来看看两种不同的写法。
" V2 r& I' a( A# Z2 p: x/ U2 {1 P一.数据库设计7 P4 g W+ j+ i1 p4 W1 G" E
- CREATE TABLE `bg_cate` (
- j- `% \; j- g' g. R+ h# K - `cate_Id` int(30) unsigned NOT NULL AUTO_INCREMENT,
* a8 K7 b) X ?+ p% m: \% B8 G& x2 j6 N - `cate_ParentId` int(30) unsigned DEFAULT '0',# B1 v0 a8 x6 C1 P6 Z
- `cate_Name` varchar(100) NOT NULL,
# b0 F2 F0 B5 F: }: t8 p9 O - `cate_Intro` varchar(500) DEFAULT NULL,2 v/ m, O/ h0 [
- `cate_Order` int(30) unsigned DEFAULT '0',: i# i, S+ W+ f( O+ \7 u6 A
- `cate_Icon` varchar(100) DEFAULT NULL,5 F! n! Q9 a# y: P8 r( [. h
- PRIMARY KEY (`cate_Id`)/ I8 b7 o% x2 o' `: K/ z6 v \' V
- ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=34 ;5 x9 n) |, Q; a" d. F- D, u" R
- --
+ N; p8 b& F3 ] - -- 导出表中的数据 `bg_cate`- \3 Y" _: C: @1 u
- --
4 h: `3 h! o" d' y7 Z, Z3 n) M - INSERT INTO `bg_cate` (`cate_Id`, `cate_ParentId`, `cate_Name`, `cate_Intro`, `cate_Order`, `cate_Icon`) VALUES( ?* b0 ~% M5 j
- (4, 0, '往事如风', '记录往事', 0, 'icons/6.gif'),
" v2 k" v: @9 i) @ - (5, 0, '水煮三国', '品位三国智慧', 0, 'icons/3.gif'),
) n E; @$ q0 q - (2, 0, '技术学习', '平时学习的一些笔记,欢迎批评指正。', 0, 'icons/18.gif'),$ d2 u& S5 B( z8 n" P( R
- (3, 0, '生活点滴', '记录生活点滴', 0, 'icons/2.gif'),, M. ^- c8 `0 o4 t! o
- (6, 0, '栀子花开', '青春无限', 0, 'icons/8.gif'),, A+ o$ X; [9 h# K- q/ E+ h
- (7, 0, '假日休闲', '悠闲、自在', 0, 'icons/24.gif'),; r3 J0 a' |7 `$ x6 l, V
- (8, 2, 'html', 'html学习', 0, 'icons/1.gif'),* |' [# u- h0 [' D- ~" s d% b2 Q7 Q
- (9, 2, 'css', 'css学习', 0, 'icons/1.gif'),5 V& {: E F5 R0 n4 C' |
- (10, 2, 'php', 'php学习', 0, 'icons/18.gif'),$ ?" e4 B8 T: t, a3 c
- (11, 10, 'php基础知识', 'php基础知识', 0, 'icons/1.gif'),5 W1 R1 m- L* o3 o5 A
- (12, 10, 'oop', 'oop', 0, 'icons/1.gif'),
% K5 b4 F& Z) ]0 C S - (13, 10, 'php安全', '讲述php安全', 0, 'icons/1.gif'),
' E' k. G; y1 m& y6 b% ~ - (14, 10, 'seagull framework', 'seagull framework', 0, 'icons/1.gif'),
+ q5 e0 U" ?, I. y - (15, 2, 'javascript', 'javascript学习', 0, 'icons/1.gif'),
5 k. R( d0 g: W - (16, 2, '设计模式', NULL, 0, 'icons/1.gif'),
& E# ~ ?0 l9 v" i; M& i( ^8 E - (17, 2, '软件工程', '软件工程学习', 0, 'icons/1.gif'),. k: T8 D$ m4 ?- K) ~
- (18, 3, '厦门生活', '厦门生活', 0, 'icons/8.gif'),
3 s0 ?$ r% x' L- Q - (19, 3, '大学生活', '大学生活', 0, 'icons/8.gif'),
. q+ M- Y5 ?1 X- S2 E# M, i, _ - (20, 3, '童年生活', '童年生活', 0, 'icons/15.gif'),6 R/ B7 Q% n4 A% H. E
- (21, 19, '学习', '学习', 0, 'icons/1.gif'),
9 K' E, D* q. [2 O" J: J ] - (22, 19, '运动', '运动', 0, 'icons/16.gif')," ?8 N/ J* {* t2 Q7 |
- (23, 19, '旅游', '旅游', 0, 'icons/24.gif'),
6 M, u/ t- O2 d( ? - (24, 22, '排球', '排球', 0, 'icons/9.gif'),
/ ~! r/ Y% ^4 ]0 b" h5 v9 b2 ^6 n - (25, 22, '篮球', '篮球', 0, 'icons/9.gif'),; |) b3 o! r% ~
- (26, 22, '羽毛球', '羽毛球', 0, 'icons/9.gif'),$ ]3 t5 h; y1 D7 p1 T! N
- (27, 22, '乒乓球', '乒乓球', 0, 'icons/9.gif');
复制代码 二.到数据库取数据,放到数组。
. O7 U1 c' D! u% r& i- require_once './classes/MyDB.php';
& V: P" l$ ~) s) P. Q - $con = MyDB::singleton();
% \- Q( r/ d: z( m0 W7 `% T - $sql = <<<SQL) g: ]& l5 Z1 v) h/ ^/ k; e) f B
- select * from bg_cate cate
$ B4 J8 v# b4 o& S - SQL;5 u& c: i! g' J5 h2 _+ q7 i
- $data = $con->getAll($sql);
$ k$ b* \3 o' @* ` - //print_r($data);
复制代码 数据库操作我用的是pear类库。
3 t6 `( ~* U) L3 {最后的$data的数据格式如下:' q! q, h8 ? h. f: ?4 o, [
- Array4 ~. f# |' R9 C% D
- (4 J% |3 W2 B5 f2 ?
- [0] => Array
; k1 B% f4 |- Q% ?& v! f# j - (! B& v- @% r! z2 G, y
- [cate_Id] => 4, t+ q' b$ y' Q% V4 n, ?8 W3 h, N& T( I+ ?
- [cate_ParentId] => 0% `/ _) b- M8 g2 B
- [cate_Name] => 往事如风
# i4 y# j% M% w2 W - [cate_Intro] => 记录往事
2 \3 Y) K; ] Z3 @ - [cate_Order] => 0
, ?% A! {2 [' i - [cate_Icon] => icons/6.gif
( b9 ~8 R6 C) q) Y - )
- Y2 [, @! V+ r4 c4 z - [1] => Array
- _* v" V9 p! }& m: M! h - (- Y: E) l7 A) d6 q+ Y
- [cate_Id] => 5( ]4 z8 m- q8 I) g- ^8 w" f
- [cate_ParentId] => 0) s: U% e- c0 s, O: ^1 L
- [cate_Name] => 水煮三国$ P6 j4 B# Y+ }8 N } E
- [cate_Intro] => 品位三国智慧
o, M* V7 o, h: k1 b2 E2 } - [cate_Order] => 0( e9 u5 K# q! {" a( G& G, E
- [cate_Icon] => icons/3.gif9 d/ }3 K% p( u/ c. z& ~/ g
- )
复制代码 三.把上一步的数据转为树型状的数组% y2 _/ I3 _) M1 h& D6 R0 |5 @
代码如下:$ J4 W/ t5 g% q
- function getTree($data, $pId)
# n/ g. m4 s4 l1 Z - {
; c# N- j/ u! n( s - $tree = '';% w6 H6 ~" f1 t! N/ O
- foreach($data as $k => $v)
4 [, ?1 F" @# q( a7 u* L - {
5 i7 n- Q- y' i5 w - if($v['cate_ParentId'] == $pId)! o: U: M8 p3 f2 |# K0 r! s
- { //父亲找到儿子
$ \* M, a1 @3 t. ~ - $v['cate_ParentId'] = getTree($data, $v['cate_Id']);
6 @$ k2 @. q+ v6 X, v' z0 S - $tree[] = $v;
8 i1 w% n" T0 k# _ - //unset($data[$k]);
2 I- R1 a; g5 t9 n, ?7 g; T - }7 P/ e) l B7 j, {+ I9 C q; p, g
- }8 }, p" J- v T3 F
- return $tree;
7 m/ W \, k* e( H) l - }
' Z! [& j R4 F v$ ]2 B! ^) g - $tree = getTree($data, 0);
复制代码 最后输出$tree的数据格式为:3 Z, ]/ O h0 b
- Array
) c8 e2 {0 s/ p" z+ g - (
7 h) ?& `- C C8 c8 U2 A - [0] => Array
; V; @$ L; U7 Z. Y - (
1 E3 B) w6 ? P+ h, d0 ~; t! Q4 e3 ~ - [cate_Id] => 4$ X( g: Q, h5 i8 { s# H: R
- [cate_ParentId] =>
" _8 b. W" E7 ]$ \4 R - [cate_Name] => 往事如风5 P! P* O& E/ o H1 P
- [cate_Intro] => 记录往事+ i# Y- m( I* M( \! J8 K' O) N
- [cate_Order] => 0; b% V# d) ]8 j0 j
- [cate_Icon] => icons/6.gif- I# v3 S; W/ U T2 `
- )
+ j+ f; `' A! a1 }/ w2 j+ Y( c1 o - [1] => Array
) s# p( S0 G4 A5 U* Z( u - ( M' `. r& Y+ ]/ Q I
- [cate_Id] => 5
& ^ s" C( R& }5 g& `2 w! _ - [cate_ParentId] =>5 R) {3 F& j2 E$ A$ Q: i1 |
- [cate_Name] => 水煮三国, ~* u3 w0 g9 y& c
- [cate_Intro] => 品位三国智慧; Y8 Q# R- y- F$ o3 i* O
- [cate_Order] => 0
; @/ @5 C9 f- ?5 B* c8 v T - [cate_Icon] => icons/3.gif
; R2 f' J4 s% K/ t) [ - )+ e+ h* T* C# ?! Y, P0 i
- [2] => Array
/ H4 H4 K( u* g# v* B - (' o b+ E. F! `" x2 j
- [cate_Id] => 2. Q& Y2 y- ~9 H, e( Y$ B, B
- [cate_ParentId] => Array
" d R; R: L' ^' y. y) w - (; p' J: I# y$ @' {
- [0] => Array
- y8 N$ ?3 b' j - (* k- E9 `9 K, _9 G) T
- [cate_Id] => 8
9 p1 d4 L2 l$ ~2 p - [cate_ParentId] =>8 ~8 m( [$ s# l! X- W. e! t" x
- [cate_Name] => html% Y7 y4 E) b; A! l
- [cate_Intro] => html学习1 P4 J" N: L: n& K) m6 s) p
- [cate_Order] => 0( ?- Q/ I$ Z" a' \% F
- [cate_Icon] => icons/1.gif
1 `( [* A- O' Z1 F% E& n2 ^5 i - )
复制代码 四.把树型状数组转为html& V3 m0 V2 o' y1 o3 E9 _4 k
代码如下:& w; m* x! B' b
- function procHtml($tree)+ y+ N4 s5 f* K$ {/ Q! P3 X
- {
: E% w. g8 F$ D7 `; w* A - $html = '';
0 f% ]( l/ O" m - foreach($tree as $t)! i+ ]& E& _6 D) l3 v
- {* R) X9 {7 Q% K* }- Y
- if($t['cate_ParentId'] == '')
2 f' E3 Q8 s+ R+ S$ F0 j5 m9 z& | - {
s8 |; t- p% q - $html .= "<li>{$t['cate_Name']}</li>";
' L z( ^+ U( {% q. @7 |, I - }
% T/ a `+ m. u4 l6 A/ K - else
: \0 T1 ^1 \ O3 ~ - {5 E2 f1 d" e1 q0 X4 {
- $html .= "<li>".$t['cate_Name']; e$ s! r3 A G; {" }& o/ R
- $html .= procHtml($t['cate_ParentId']);8 A: V+ B7 [% Y' T5 e
- $html = $html."</li>";+ v+ N8 [$ A6 j0 I" ]
- }' @/ |9 g. B2 ^
- }5 i+ R5 y4 d9 W: N% w# M
- return $html ? '<ul>'.$html.'</ul>' : $html ;( v( {- M* E& L$ I+ L
- }
. Y8 |3 I4 y$ U5 M' P$ Y6 Y' U - echo procHtml($tree);
复制代码 输出的html的代码格式为:8 K2 z5 e( \4 j: J
- <ul>
/ b9 B* ^* n6 Z+ R9 \* b3 D6 d - <li>往事如风</li>
5 N6 W* P, n' \& O* W! e: e6 \# c0 T! [ - <li>水煮三国</li>
" Y% O" E8 M- }; k - <li>技术学习
7 G% [7 q9 ]! p3 T' w - <ul>
, L% A% S4 r5 J+ L - <li>html</li>
5 p. k( D7 t/ C# ?0 F+ a: Q8 ~ - <li>css</li>3 _4 B" U% X, M K0 A9 F5 `) V
- <li>php
+ ]8 q; V* R6 L; Y9 B0 l; F - <ul>
0 H: \2 U' y c - <li>php基础知识</li>) d/ [! e2 j# h8 P5 ?- T' c/ b
- <li>oop</li>+ E; ^$ m% a8 W7 w6 B3 y
- <li>php安全</li>
复制代码 五.代码整合) H& x( y8 m" i3 ]
- function getTree($data, $pId)
) b. d, P! Y3 k - {+ I9 b0 d9 r9 I5 z
- $html = '';
8 \4 v1 H4 g& |0 \0 F - foreach($data as $k => $v)7 q% |+ Y4 d7 b/ L- |2 v
- {
: `- [; A6 r5 z( J - if($v['cate_ParentId'] == $pId)( l U8 N0 A, l; F
- { //父亲找到儿子
) N) Q' K" N% G& r6 j - $html .= "<li>".$v['cate_Name'];
- r' O6 @9 K) {4 Z7 @ - $html .= getTree($data, $v['cate_Id']);( b. a! S# E8 J6 L$ \6 S+ e }9 {
- $html = $html."</li>";
3 L& u8 s! E, m% z - }* N, u- }. p2 ~ U- L5 e: ~7 c
- }
6 e/ s! @9 S, i, R' ^" |- x - return $html ? '<ul>'.$html.'</ul>' : $html ;
& e4 C- N( L! U5 l/ O7 j - }
0 @6 G5 J/ ~% n/ S& ^% W - echo getTree($data, 0);
复制代码 六.增加CSS样式9 i. C& A* ?1 q9 K
+ d9 R5 p6 C# o: D/ w% v6 u: Q! h$ c* [% Y& n8 G6 W
第二种是从开源网站上看到的,非常非常的简介。6 L, Z+ Q7 v+ a+ k: }
- <?php
/ n+ ~2 m, I2 ]2 W% H -
$ t! M# L/ p9 C' T! q - function genTree5($items) {
4 B6 g; b5 i. N# O - foreach ($items as $item) . O8 G! h! t! C9 v& w
- $items[$item['pid']]['son'][$item['id']] = &$items[$item['id']];
( b' w0 I7 i" G3 O: ? - return isset($items[0]['son']) ? $items[0]['son'] : array();
# N! {. D7 G+ x% w/ _* d7 i - } , c% `2 ?. h! s1 q( b
-
9 t' W& B# i3 J0 O0 g! y3 k6 i7 q - /**
, O) [. y8 d+ d% B - * 将数据格式化成树形结构$ J6 e" P/ Z8 y ^. ]2 R' r5 g& ]
- * @author Xuefen.Tong
$ c; b3 {4 |& S4 t: z - * @param array $items
7 Q0 I3 m" I9 F" S - * @return array
" K7 H) y- R! Z9 V; B+ c - */ c5 t- ?& W! y% ]* b. G' o
- function genTree9($items) {
2 P. Y# j7 d5 F6 [) o4 P - $tree = array(); //格式化好的树
7 ^( g* R7 Q) R7 ]$ W - foreach ($items as $item)
1 {2 l8 u/ h4 D: E* z9 v+ W - if (isset($items[$item['pid']]))- n6 E$ t7 y; v6 j
- $items[$item['pid']]['son'][] = &$items[$item['id']];
3 |5 b' A0 G1 f1 n# I- e. G - else: v S# ?, S; d8 [# k5 w
- $tree[] = &$items[$item['id']];+ P% D4 l9 C8 U0 j' D
- return $tree;
) n( ?: s* P( t - }
: c: T: q; b3 b# I+ h' k/ v -
' {5 l/ c( Q% R - $items = array(1 [9 ?6 J# p7 F- y/ F. h* J5 ^0 A
- 1 => array('id' => 1, 'pid' => 0, 'name' => '江西省'),
1 K6 o {% T+ B - 2 => array('id' => 2, 'pid' => 0, 'name' => '黑龙江省'),# f( k: z9 |5 w% F! q0 a
- 3 => array('id' => 3, 'pid' => 1, 'name' => '南昌市'),; R+ U( C# P; b+ N; a
- 4 => array('id' => 4, 'pid' => 2, 'name' => '哈尔滨市'),/ T+ v$ y- B, ]. {4 g ?+ Y& P
- 5 => array('id' => 5, 'pid' => 2, 'name' => '鸡西市'), j! X. @$ G6 J: i* s3 }4 c) U
- 6 => array('id' => 6, 'pid' => 4, 'name' => '香坊区'),
5 w3 R. ~( E0 Z' d N8 ]5 d, r - 7 => array('id' => 7, 'pid' => 4, 'name' => '南岗区'),
8 j; b7 w2 d* `" O - 8 => array('id' => 8, 'pid' => 6, 'name' => '和兴路'),
. P: y) D# R. X; P3 m - 9 => array('id' => 9, 'pid' => 7, 'name' => '西大直街'),
+ r( d# v, W+ x7 g* [( a1 I - 10 => array('id' => 10, 'pid' => 8, 'name' => '东北林业大学'),
' S0 Y8 ^. W9 F" { z4 m K; P( Z - 11 => array('id' => 11, 'pid' => 9, 'name' => '哈尔滨工业大学'),
% k8 t; R' e7 ^2 o" ` n - 12 => array('id' => 12, 'pid' => 8, 'name' => '哈尔滨师范大学'),
2 g& r, i4 E! r- }3 ] - 13 => array('id' => 13, 'pid' => 1, 'name' => '赣州市'),
2 J% l9 z. U2 {- Z - 14 => array('id' => 14, 'pid' => 13, 'name' => '赣县'), J. n, K4 L2 ?% j4 A' }5 k" T
- 15 => array('id' => 15, 'pid' => 13, 'name' => '于都县'),: J% C0 H/ E+ M
- 16 => array('id' => 16, 'pid' => 14, 'name' => '茅店镇'),
- I" |! |: q" G4 N: R0 k - 17 => array('id' => 17, 'pid' => 14, 'name' => '大田乡'),
" m# }+ }" W$ }5 p Y& E& H1 v - 18 => array('id' => 18, 'pid' => 16, 'name' => '义源村'),8 p' b1 F+ _- B+ W. ], t
- 19 => array('id' => 19, 'pid' => 16, 'name' => '上坝村'),
2 o1 T- |, |6 t" |( G3 s1 G - );
0 p1 }3 H1 ?$ A3 D - echo "<pre>";- e2 S/ D. I: z! Z5 a$ F
- print_r(genTree5($items));
5 n9 b7 |0 g& A* T) @/ Y. A - print_r(genTree9($items));5 `5 x7 C1 f- ]' ~; X+ z
-
, C: v4 @3 O. t8 D* S - //后者输出格式,前者类似,只是数组键值不一样,不过不影响数据结构( Q9 g* `# @7 _$ p3 A, }4 Y
- /*; a; ? `+ B4 Y( l- j5 k
- Array! U! t' U+ i7 G6 ^- B
- (; w) ?2 C' y3 x
- [0] => Array' @7 t9 j3 l. V. ~
- (
# {: @* H- S9 \- H$ v% _! h9 p$ A" b - [id] => 1
2 {+ [. [/ |5 \ - [pid] => 0
/ a& b9 j" K$ K - [name] => 江西省
4 N# e' {+ M" ^6 M0 C8 Q - [son] => Array
" m$ s5 T4 T8 ~9 D4 K - (. w+ J; B+ N! k' v* T5 D* B: L3 \0 s
- [0] => Array, i' V8 t4 ~$ ^: q/ J9 t2 g0 h5 }% {
- (
, G3 U5 R5 P) H# A - [id] => 3
/ z0 _! G9 Y1 V K1 p, t - [pid] => 1/ k) b6 `% t: c& I2 c. t
- [name] => 南昌市8 r8 V& m: ^9 K0 P( x3 v: N( L- z0 G2 U
- ). U$ U0 g% Q0 q# u1 F9 s
-
3 s! D4 F) E9 G% @* k* a, h) C; J - [1] => Array' J: l" x$ u- z- v3 U
- (8 \9 x* h1 V6 I2 \" [
- [id] => 13- S9 d; D& G" F5 Z. ^
- [pid] => 1
1 j! @1 u( T0 n% [( U+ K) ?. ~ - [name] => 赣州市
' H# `) c$ l" i( ~, I - [son] => Array
" F& C7 D+ l& ^$ k* ~7 K$ k - (% ?. @) H1 M( K9 ?
- [0] => Array
: c5 N* B5 P& \$ y7 |& S - (" ?# n) P! |$ K
- [id] => 14
* \! f" ?$ g& {* Y/ p) v) \ - [pid] => 13- A: q7 i1 a7 Y
- [name] => 赣县
. M$ N9 M; ^0 i) o/ D- C: S - [son] => Array
/ p: E, @% f& \6 y& u8 l, b S - (
. _; G, T! k6 c, Z0 _% }/ G - [0] => Array
$ e- L y9 L8 Q; z- V8 V+ s - (
; m% C a! a- s+ b% M - [id] => 16' u$ K2 v7 w: a5 Z3 C
- [pid] => 14
+ H8 ^3 p1 @) j0 V; t/ \9 j5 n3 U0 S% t4 p - [name] => 茅店镇
6 q0 ?' r, K) e, e) _5 q - [son] => Array
8 W f5 v% U3 \; Q; ^8 M2 I W - (
( m3 p6 Y) s! f - [0] => Array3 i# U$ s/ e3 @! }
- (
3 Y% h9 W# f2 N - [id] => 180 I7 K+ b5 H3 e; `' |0 {9 G, Q8 {
- [pid] => 16* X+ U2 D- W( P# w% i( j) M! t" N
- [name] => 义源村
3 G2 j' e4 F% d! W, o' Y! Y% \: A - )9 n* `/ J; G, F/ g
- , v' m' u a0 K D8 {1 A- N& j
- [1] => Array
' f) U. E1 B+ l9 j' F, g4 I' q - (
, d1 S4 a/ I- Y - [id] => 19
5 @$ S0 R' B- N' ]$ r' z2 R/ j4 o3 i* N @6 | - [pid] => 16
# ]9 w+ f+ U7 U% Z; @2 F7 O6 |* m - [name] => 上坝村
! s+ v* G$ y( J2 T5 M& J - )
. Z3 t8 [/ p4 F/ ^2 U$ ` - ( h, |8 R5 T. s( X! s
- )4 T# T- r- e" {4 c) i- Z1 ?
- ! K9 o& S2 Q8 m4 o. N F
- )' W+ \7 _5 R" i: ]0 X
- 8 y9 N, `" c7 B5 P- G
- [1] => Array
; u9 z- ~% |) Y% s5 B6 g - (
' `, \+ G# {1 }5 l- `9 X - [id] => 17* n( |- X/ Z: a( O. w( t
- [pid] => 14
& g! { }1 @, M" M1 } - [name] => 大田乡
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- [1] => Array
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6 s5 \/ \5 _4 P: `; P, I' v - [id] => 15
$ T6 A x6 I0 z* G" J/ j0 p" Y - [pid] => 13
/ F- Z* ^9 o3 e; u- x% k/ o+ i2 }$ L - [name] => 于都县
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- [1] => Array
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8 U% O% @: c. l0 a - [id] => 2
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- [name] => 黑龙江省
0 H% N8 Z: K9 y - [son] => Array
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$ J$ e+ m/ j* k# U' p - [0] => Array
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- [id] => 4: S' b/ E( \" M" }
- [pid] => 2: ? K5 ?& V% P( C) U# R
- [name] => 哈尔滨市
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3 ?: u2 B+ u) f7 F9 }1 B - [0] => Array
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% s+ \, @6 D; B, p - [id] => 64 D1 ^5 C0 O( m! G9 x
- [pid] => 4# R# ~4 E# {% i: A% o6 R, z: r
- [name] => 香坊区$ E& }% j* \, V0 J9 S) q( d* x
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- [id] => 8
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- [name] => 和兴路8 Y8 R5 O9 }" c
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- [pid] => 8
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6 v9 I, ?" I! x - 东北林业大学/ M9 L! K( X _- c9 F2 E. @1 [' p
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- [id] => 12
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- [name] => 3 G7 R0 S( g- \. p/ f2 C y. t
- 哈尔滨师范大学' O! a' b1 V7 P% M& @ l) E ~9 S
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/ q, f! g& d2 t; q" {" a - [id] => 75 X( P/ q1 }2 Q* i
- [pid] => 4
& R- L$ b+ Y% S- f4 E4 t - [name] => 南岗区
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) g+ _, C1 r7 U) H) L - [0] => Array
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- [pid] => 7
. S6 e6 K! V8 X4 w. B8 Y - [name] => 西大直街1 K+ }4 W, O+ \9 f: n9 Y1 X
- [son] => Array; A4 v, R+ L1 [' b9 d
- (
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- [id] => 11
& V F" ^ B, Y* t+ q - [pid] => 9
/ Q- U& |" Q' X( y6 {, i5 A2 ` - [name] => # i/ s% \0 {; G5 V4 x
- 哈尔滨工业大学! Z" @0 }' N9 q& E# o( z
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- [id] => 5. c3 O& G3 Z3 a! |
- [pid] => 23 z% |0 C6 d1 T: Z* P4 V; V& t5 _/ T
- [name] => 鸡西市
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复制代码 可以看出第二种代码只用了5行代码就实现了无限级的分类树,非常值得大家的借鉴和学习。
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