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? php教程 php手冊 表格展示無限級分類(PHP版)

表格展示無限級分類(PHP版)

Jun 13, 2016 am 11:59 AM
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TreeTable通過對單元格的行合并和列合并實現了無限層級也能較好的展示層級架構。
1.構建ID/PID/NAME的數組,后期可通過數據庫生成的動態(tài)數據。Tree算法請點擊

復制代碼 代碼如下:


array(
* 1 => array('id'=>'1','parentid'=>0,'name'=>'一級欄目一'),
* 2 => array('id'=>'2','parentid'=>0,'name'=>'一級欄目二'),
* 3 => array('id'=>'3','parentid'=>1,'name'=>'二級欄目一'),
* 4 => array('id'=>'4','parentid'=>1,'name'=>'二級欄目二'),
* 5 => array('id'=>'5','parentid'=>2,'name'=>'二級欄目三'),
* 6 => array('id'=>'6','parentid'=>3,'name'=>'三級欄目一'),
* 7 => array('id'=>'7','parentid'=>3,'name'=>'三級欄目二')
* )


 2. 導入TreeTable類庫。

復制代碼 代碼如下:


import('@.ORG.Util.TableTree'); //Thinkphp導入方法


3. 生成TreeTable HTML代碼

復制代碼 代碼如下:


$treeTable->init($treearr);
echo $treeTable->get_treetable();


注意:get_treetable()只生產表體部門,請自行構建。
完整代碼

復制代碼 代碼如下:


/**
* File name: TreeTable.class.php
* Author: run.gao 312854458@qq.com Date: 2012-07-24 23:22 GMT+8
* Description: 通用的表格無限級分類
* */
/**
* 表格展示無限分類是將無線分類已表格的形式表現出來,更好的能體現出分類的所屬關系
* 使用方法:
* 1. 實例化分類
* $treeTable = new TreeTable();
* 2. 初始化分類,$treearr必須是一個多維數組且包含 id,parentid,name字段
* $treeTable->init($treearr);
* 3. 獲取無限分類HTML代碼
* echo $treeTable->get_treetable();
* */
class TreeTable {
/**
* 生成樹型結構所需要的2維數組
* @var array
*/
public $arr = array();
/**
* 表格列數
* @var int
*/
public $columns = 0;
/**
* 表格行數
* @var int
*/
public $rows = 0;
/**
* 初始化TreeTable數據
* @param array 2維數組
* array(
* 1 => array('id'=>'1','parentid'=>0,'name'=>'一級欄目一'),
* 2 => array('id'=>'2','parentid'=>0,'name'=>'一級欄目二'),
* 3 => array('id'=>'3','parentid'=>1,'name'=>'二級欄目一'),
* 4 => array('id'=>'4','parentid'=>1,'name'=>'二級欄目二'),
* 5 => array('id'=>'5','parentid'=>2,'name'=>'二級欄目三'),
* 6 => array('id'=>'6','parentid'=>3,'name'=>'三級欄目一'),
* 7 => array('id'=>'7','parentid'=>3,'name'=>'三級欄目二')
* )
*/
public function init($arr=array()){
if(!is_array($arr)) return false;
foreach ($arr as $k=>$v) {
$this->arr[$v['id']] = $v;
}
foreach ($this->arr as $k => $v){
$this->arr[$k]['column'] = $this->get_level($v['id']); // Y軸位置
$this->arr[$k]['arrchildid'] = $this->get_arrchildid($v['id']); // 所有子節(jié)點
$this->arr[$k]['arrparentid'] = $this->get_arrparentid($v['id']); // 所有父節(jié)點
$this->arr[$k]['child_bottom_num'] = $this->get_child_count($v['id']); // 所有底層元素節(jié)點
}
$this->columns = $this->get_columns(); // 總行數
$this->rows = $this->get_rows(); // 總列數
// 按照arrparentid和id號進行排序
$this->sort_arr();
foreach ($this->arr as $k => $v){
$this->arr[$k]['row'] = $this->get_row_location($v['id']); // X軸位置
$this->arr[$k]['rowspan'] = $v['child_bottom_num']; // 行合并數
$this->arr[$k]['colspan'] = $v['child_bottom_num'] == 0 ? $this->columns - $v['column'] + 1 : 0; //列合并數
}
return $this->get_tree_arr();
}
/**
* 獲取數組
* */
public function get_tree_arr(){
return is_array($this->arr) ? $this->arr : false;
}
/**
* 按arrparentid/id號依次重新排序數組
* */
public function sort_arr(){
// 要進行排序的字段
foreach ($this->arr as $k => $v){
$order_pid_arr[$k] = $v['arrparentid'];
$order_iscost[] = $v['sort'];
$order_id_arr[$k] = $v['id'];
}
// 先根據arrparentid排序,再根據排序,id號排序
array_multisort(
$order_pid_arr, SORT_ASC, SORT_STRING,
$order_iscost, SORT_DESC, SORT_NUMERIC,
$order_id_arr, SORT_ASC, SORT_NUMERIC,
$this->arr);
// 獲取每一個節(jié)點層次
for ($column = 1; $column columns; $column++) {
$row_level = 0;
foreach ($this->arr as $key => $node){
if ($node['column'] == $column){
$row_level++;
$this->arr[$key]['column_level'] = $row_level;
}
}
}
// 重新計算以ID作為鍵名
foreach ($this->arr as $k=>$v) {
$arr[$v['id']] = $v;
}
$this->arr = $arr;
}
/**
* 得到父級數組
* @param int
* @return array
*/
public function get_parent($myid){
$newarr = array();
if(!isset($this->arr[$myid])) return false;
$pid = $this->arr[$myid]['parentid'];
$pid = $this->arr[$pid]['parentid'];
if(is_array($this->arr)){
foreach($this->arr as $id => $a){
if($a['parentid'] == $pid) $newarr[$id] = $a;
}
}
return $newarr;
}
/**
* 得到子級數組
* @param int
* @return array
*/
public function get_child($myid){
$a = $newarr = array();
if(is_array($this->arr)){
foreach($this->arr as $id => $a){
if($a['parentid'] == $myid) $newarr[$id] = $a;
}
}
return $newarr ? $newarr : false;
}
/**
* 獲取當前節(jié)點所在的層級
* @param $myid 當前節(jié)點ID號
* */
public function get_level($myid, $init = true){
static $level = 1;
if($init) $level = 1;
if ($this->arr[$myid]['parentid']) {
$level++;
$this->get_level($this->arr[$myid]['parentid'], false);
}
return $level;
}
/**
* 獲取當前節(jié)點所有底層節(jié)點(沒有子節(jié)點的節(jié)點)的數量
* @param $myid 節(jié)點ID號
* @param $init 第一次加載將情況static變量
* */
public function get_child_count($myid, $init = true){
static $count = 0;
if($init) $count = 0;
if(!$this->get_child($myid) && $init) return 0;
if($childarr = $this->get_child($myid)){
foreach ($childarr as $v){
$this->get_child_count($v['id'], false);
}
}else{
$count++;
}
return $count;
}
/**
* 獲取節(jié)點所有子節(jié)點ID號
* @param $catid 節(jié)點ID號
* @param $init 第一次加載將情況static初始化
* */
public function get_arrchildid($myid, $init = true) {
static $childid;
if($init) $childid = '';
if(!is_array($this->arr)) return false;
foreach($this->arr as $id => $a){
if($a['parentid'] == $myid) {
$childid = $childid ? $childid.','.$a['id'] : $a['id'];
$this->get_arrchildid($a['id'], false);
}
}
return $childid ;
}
/**
* 獲取該節(jié)點所有父節(jié)點ID號
* @param $id 節(jié)點ID號
* */
public function get_arrparentid($id, $arrparentid = '') {
if(!is_array($this->arr)) return false;
$parentid = $this->arr[$id]['parentid'];
if($parentid > 0) $arrparentid = $arrparentid ? $parentid.','.$arrparentid : $parentid;
if($parentid) $arrparentid = $this->get_arrparentid($parentid, $arrparentid);
return $arrparentid;
}
/**
* 獲取節(jié)點所在地行定位
* @param $myid 節(jié)點ID號
*/
public function get_row_location($myid){
$nodearr = $this->arr;
// 獲取每一個節(jié)點所在行的位置
foreach ($nodearr as $key => $node){
if($myid == $node['id']) {
$node_row_count = 0;
$arrparentid = explode(',', $node['arrparentid']);
// 所有父節(jié)點小于當前節(jié)點層次的底層節(jié)點等于0的元素
foreach ($arrparentid as $pid){
foreach ($nodearr as $node_row){
if($node_row['column'] == $nodearr[$pid]['column'] && $nodearr[$pid]['column_level'] > $node_row['column_level'] && $node_row['child_bottom_num'] == 0){
$node_row_count ++;
}
}
}
// 所有當前節(jié)點并且節(jié)點層次(rowid_level)小于當前節(jié)點層次的個數
foreach ($nodearr as $node_row){
if($node['column'] == $node_row['column'] && $node_row['column_level'] $node_row_count += $node_row['child_bottom_num'] ? $node_row['child_bottom_num'] : 1;
}
}
$node_row_count++;
break;
}
}
return $node_row_count;
}
/**
* 獲取表格的行數
* */
public function get_rows(){
$row = 0;
foreach ($this->arr as $key => $node){
if($node['child_bottom_num'] == 0){
$rows++; // 總行數
}
}
return $rows;
}
/**
* 獲取表格的列數
* */
public function get_columns(){
$columns = 0 ;
foreach ($this->arr as $key => $node){
if($node['column'] > $columns){
$columns = $node['column']; // 總列數
}
}
return $columns;
}
/**
* 獲取分類的表格展現形式(不包含表頭)
* */
public function get_treetable(){
$table_string = '';
for($row = 1; $row rows; $row++){
$table_string .= "\r\t

";
foreach ($this->arr as $v){
if($v['row'] == $row){
$rowspan = $v['rowspan'] ? "rowspan='{$v['rowspan']}'" : '';
$colspan = $v['colspan'] ? "colspan='{$v['colspan']}'" : '';
$table_string .= "\r\t\t
{$v['name']}
";
}
}
$table_string .= "\r\t";
}
return $table_string;
}
}
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