无限分级和树状节点输出

';

$strRe = '

传入简单的原始数据,可以得出节点间的N种关系,并能输出树状的DOM 注意:请参考git.oschina.net上的最新代码(点"源码出处"链接) /** * 输出无限分类,我自己写的哦~ * * @author [e-mail] * @since 2013-09-24 AM */ /* 使用示例 */ /* $arrAll = array( array('id' => 1, 'name' => '栏目分类_1', 'name_en' => 'cat_1', 'parent_id' => 0), array('id' => 2, 'name' => '栏目分类_2', 'name_en' => 'cat_2', 'parent_id' => 0), array('id' => 3, 'name' => '栏目分类_3', 'name_en' => 'cat_3', 'parent_id' => 1), array('id' => 4, 'name' => '栏目分类_4', 'name_en' => 'cat_4', 'parent_id' => 1), array('id' => 5, 'name' => '栏目分类_5', 'name_en' => 'cat_5', 'parent_id' => 2), array('id' => 6, 'name' => '栏目分类_6', 'name_en' => 'cat_6', 'parent_id' => 4), array('id' => 7, 'name' => '栏目分类_7', 'name_en' => 'cat_7', 'parent_id' => 6), array('id' => 8, 'name' => '栏目分类_8', 'name_en' => 'cat_8', 'parent_id' => 7), array('id' => 9, 'name' => '栏目分类_9', 'name_en' => 'cat_9', 'parent_id' => 6) ); $objT = new TreeList($arrAll); print_r($objT->arrAll); print_r($objT->arrIdAll); print_r($objT->arrIdChildren); print_r($objT->arrIdSon); print_r($objT->arrIdLeaf); print_r($objT->arrIdRelation); print_r($objT->arrIdRelationSimple); print_r($objT->arrIdRoot); print_r($objT->arrIdBackPath); print($objT->getTable()); print($objT->getSelect('cat', array(1, 8), true)); */ // !defined('IN_FRAME') && die('404 Page'); class TreeList { /** * 分析出所有可能用到的数据 */ public $arrAll = array(); // 原始数据 public $arrIdRelation = array(); // 按_ID作键名的多维关系 public $arrIdRelationSimple = array(); // 按_ID作键名的多维关系的简化,用来输出树状图 public $arrIdAll = array(); // 将原始数据转化成的_ID作键名的数组 public $arrIdSon = array(); // 所有的父子关系 public $arrIdLeaf = array(); // 叶子节点的_ID public $arrIdRoot = array(); // 根节点的_ID public $arrIdChildren = array(); // 每个节点下的子孙后代_ID public $arrIdBackPath = array(); // 每个节点回逆到根 public $strItem = ' {$strSep}{$name}'; // 输出树的结构 /** * 构造函数,传入原始数据 */ public function __construct($arrData) { $this->arrAll = $arrData; $this->processData(); } /** * 简单的树 */ public function getHtml() { return $this->genHtml(); } /** * 用Table来画树 */ public function getTable() { $this->strItem = '
{$strSep}{$name}	{$name}	{$name_en}

';

$strRe .= '

';

$strRe .= $this->genHtml();

$strRe .= '

结构	中文名	英文名

';

return $strRe;

}

/**

* 在下拉框中显示

* example:

* $objTreeList->getSelect('parent_id', 0, false, 'class="span5"', array(0, '≡ 作为一级栏目 ≡')))

*/

public function getSelect($strName = 'tree', $arrValue = array(), $blmMulti = false, $strExt = '', $arrFirst = null) {

!is_array($arrValue) && $arrValue = array($arrValue);

foreach ($this->arrIdAll as $strTemp => $arrTemp) {

$this->arrIdAll[$strTemp]['selected'] = '';

if (in_array($arrTemp['id'], $arrValue)) {

$this->arrIdAll[$strTemp]['selected'] = ' selected="selected"';

}

}

$this->strItem = '{$strSep}{$name}';

$strRe = ' $strRe .= ($blmMulti ? ' multiple="multiple"' : '') . (empty($strExt) ? '' : ' ' . $strExt) . '>';

if (is_array($arrFirst) && count($arrFirst) == 2) {

$strRe .= '

' . $arrFirst[1] . '';

}

$strRe .= $this->getHtml() . '

';

return $strRe;

}

/* ----- 以下的都是处理数据的私有函数,递归和循环之类,很复杂! ----- */

private function helpForGetRelation($arrData) {

$arrRe = array();

foreach ($arrData as $strTemp => $arrTemp) {

$arrRe[$strTemp] = $arrTemp;

if (isset($this->arrIdRelation[$strTemp])) {

$arrRe[$strTemp] = $this->arrIdRelation[$strTemp];

}

if (count($arrRe[$strTemp]) > 0) {

$arrRe[$strTemp] = $this->helpForGetRelation($arrRe[$strTemp]);

} else {

array_push($this->arrIdLeaf, $strTemp);

}

}

return $arrRe;

}

private function helpForGetChildren($arrData) {

$arrRe = array_keys($arrData);

foreach ($arrData as $arrTemp) {

$arrRe = array_merge($arrRe, $this->helpForGetChildren($arrTemp));

}

return $arrRe;

}

private function helpForGetBackPath($str) {

$arrRe = array();

$intTemp = $this->arrIdAll[$str]['parent_id'];

if ($intTemp > 0) {

$intTemp = '_' . $intTemp;

array_push($arrRe, $intTemp);

$arrRe = array_merge($arrRe, $this->helpForGetBackPath($intTemp));

}

return $arrRe;

}

private function processData() {

foreach ($this->arrAll as $arrTemp) {

$strTemp = '_' . $arrTemp['id'];

$this->arrIdAll[$strTemp] = $arrTemp;

if ($arrTemp['parent_id'] > 0) {

$strTemp_ = '_' . $arrTemp['parent_id'];

!isset($this->arrIdRelation[$strTemp_]) && $this->arrIdRelation[$strTemp_] = array();

$this->arrIdRelation[$strTemp_][$strTemp] = array();

!isset($this->arrIdSon[$strTemp_]) && $this->arrIdSon[$strTemp_] = array();

array_push($this->arrIdSon[$strTemp_], $strTemp);

} else {

!isset($this->arrIdRelation[$strTemp]) && $this->arrIdRelation[$strTemp] = array();

array_push($this->arrIdRoot, $strTemp);

}

}

$this->arrIdRelation = $this->helpForGetRelation($this->arrIdRelation);

$this->arrIdLeaf = array_unique($this->arrIdLeaf);

foreach ($this->arrIdRelation as $strTemp => $arrTemp) {

$this->arrIdChildren[$strTemp] = $this->helpForGetChildren($arrTemp);

in_array($strTemp, $this->arrIdRoot) && $this->arrIdRelationSimple[$strTemp] = $arrTemp;

}

$arrTemp = array_keys($this->arrIdAll);

foreach ($arrTemp as $strTemp) {

$this->arrIdBackPath[$strTemp] = $this->helpForGetBackPath($strTemp);

}

}

private function genSeparator($intLen) {

$strRe = '';

$i = 0;

while ($i $strRe .= '　' . (($i + 1 == $intLen) ? '├' : '│');

$i ++;

}

!empty($strRe) && $strRe .= '─';

return $strRe;

}

private function genHtml($arrRelation = null, $intSep = 0) {

$strRe = '';

null === $arrRelation && $arrRelation = $this->arrIdRelationSimple;

foreach ($arrRelation as $strKey => $arrTemp) {

if (count($this->arrIdAll[$strKey]) > 0) {

$strSep = $this->genSeparator($intSep);

extract($this->arrIdAll[$strKey]);

eval('$strRe .= "' . $this->strItem . '";');

count($arrTemp) > 0 && $strRe .= $this->genHtml($arrTemp, ($intSep + 1));

}

}

return $strRe;

}

}