<?php
class Tree
{
 public $data=array();
 public $cateArray=array();
 public $res=array();
 function Tree()
 {
 }
 function setNode ($id, $parent, $value)
 {
  $parent = $parent?$parent:0;
  $this->data[$id] = $value;
  //print_r($this->data);
  //echo \"\\r\\n\";
  $this->cateArray[$id] = $parent; //节点数组
  //print_r($this->cateArray);
 }
 function getChildsTree($id=0)
 {
  $childs=array();
  foreach ($this->cateArray as $child=>$parent)
  {
   if ($parent==$id)
   {
    $childs[$child]=$this->getChildsTree($child);
   }
  }
  print_r($childs).\"/r/n\";
  return $childs;
 }
 function getParentsTree($id=0)
 {
  $parents=array();
  foreach ($this->cateArray as $child=>$parent)
  {
   if ($child ==$id)
   {
    $parents[$parent]=$this->getParentsTree($parent);
   }
  }
  print_r($parents).\"/r/n\";
  return $parents;
 }
 function getChilds($id=0)
 {
  $childArray=array();
  $childs=$this->getChild($id);
  foreach ($childs as $child)
  {
   $childArray[]=$child;
   $childArray=array_merge($childArray,$this->getChilds($child));
  }
  return $childArray;
 }
 function getChild($id)
 {
  $childs=array();
  foreach ($this->cateArray as $child=>$parent)
  {
  if ($parent==$id)
  {
   $childs[$child]=$child;
  }
  }
  return $childs;
 }
 function getParents($id)
 {
  $parentArray=array();
  $parents=$this->getParent($id);
  foreach ($parents as $parent)
  {
   $parentArray[]=$parent;
   $parentArray=array_merge($parentArray,$this->getParents($parent));
  }
  return $parentArray;
 }
 function getParent($id)
 {
  $parents=array();
  foreach ($this->cateArray as $child=>$parent)
  {
   if ($child==$id)
   {
   $parents[$parent]=$parent;
   }
  }
  return $parents;
 }
 //单线获取父节点
 function getNodeLever($id)
 {
  $parents=array();
  if (key_exists($this->cateArray[$id],$this->cateArray))
  {
   $parents[]=$this->cateArray[$id];
   $parents=array_merge($parents,$this->getNodeLever($this->cateArray[$id]));
  }
  return $parents;
 }
 function getLayer($id,$preStr=\'|-\')
 {
  return str_repeat($preStr,count($this->getNodeLever($id)));
 }
 function getValue ($id)
 {
  return $this->data[$id];
 } // end func
 //获取所有节点数据生成树
 function getAll($id=0,$str=\"|-\"){
  if($id!=0){
   $str=$str.\"|-\";
  }
  //遍历所有数组检查parent是否有id
  foreach($this->cateArray as $child=>$parent){
   //检查是否有相等的ID
   if($parent==$id){
    $this->res[$child]=$str.$this->getValue($child);
    $this->getAll($child,$str);
   }
   //$this->res[$child]=$child.$str.$this->getValue($child);
  }
 }
}
//构造树
//setNode ($id, $parent, $value)
$tree = new Tree();
$tree->setNode(\"1\",\"\",\"电器\");
$tree->setNode(\"2\",\"\",\"服装\");
$tree->setNode(\"3\",\"1\",\"电脑\");
$tree->setNode(\"4\",\"1\",\"家电\");
$tree->setNode(\"5\",\"2\",\"男装\");
$tree->setNode(\"6\",\"2\",\"女装\");
$tree->setNode(\"7\",\"3\",\"笔记本\");
$tree->setNode(\"8\",\"3\",\"台式机\");
$tree->setNode(\"9\",\"7\",\"惠普\");
$tree->setNode(\"10\",\"7\",\"戴尔\");
$tree->setNode(\"11\",\"8\",\"火星人\");
$tree->setNode(\"12\",\"5\",\"西装\");
$tree->setNode(\"13\",\"6\",\"上衣\");
$tree->setNode(\"14\",\"9\",\"惠普-N90\");
$tree->setNode(\"15\",\"9\",\"惠普-N91\");
$tree->setNode(\"16\",\"10\",\"戴尔A11\");
$tree->setNode(\"17\",\"10\",\"戴尔A12\");
$tree->setNode(\"18\",\"10\",\"戴尔A13\");
$tree->setNode(\"19\",\"6\",\"裤子 \");
$tree->setNode(\"20\",\"13\",\"长袖\");
$tree->setNode(\"21\",\"13\",\"短袖\");
$tree->setNode(\"22\",\"20\",\"NIKE长袖\");
$tree->setNode(\"23\",\"20\",\"361长袖\");
$tree->setNode(\"24\",\"22\",\"NIKE长袖-均码\");
$tree->setNode(\"25\",\"22\",\"NIKE长袖-短码\");
$tree->setNode(\"26\",\"14\",\"惠普-N90-14寸\");
$tree->setNode(\"27\",\"14\",\"惠普-N90-15寸\");
$tree->setNode(\"28\",\"14\",\"惠普-N90-17寸\");
$tree->setNode(\"29\",\"28\",\"惠普-N90-17寸-高性能企业版\");
$tree->setNode(\"30\",\"28\",\"惠普-N90-17寸-普通家用版\");
//获取一个节点的所有父节点
//print_r ($tree->getNodeLever(12));
//print_r ($tree->getParentsTree(12));
//$childs = $tree->getChildsTree(1);
//print_r($childs);
//echo \"/r/n/r/n/r/n/r/n\";
/*
foreach($childs as $key=>$value){
 echo $key.\"<br>\";
 //echo $tree->getLayer($key).$tree->getValue($key).\"<br>\";
}
*/
$tree->getAll();
foreach($tree->res as $val){
 echo $val.\"<br>\";
}
?>
<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"
\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">
<html xmlns=\"http://www.w3.org/1999/xhtml\">
<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />
<title>生成Tree</title>
</head>
<body>
<h5>生成标签测试</5>
<select>
<?php
 foreach($tree->res as $key=>$val){
  echo \"<option value=\'{$key}\'>{$val}</option>\";
 }
?>
</select>
</body>
</html>