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wenhuayun/extend/Tree.php

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<?php
/**
* 通用的树型类，可以生成任何树型结构
* author:phpcms
* edit：rainfer
*/
class Tree
{
/**
* 生成树型结构所需要的2维数组
* @var array
*/
public $arr = array();
/**
* 生成树型结构所需修饰符号，可以换成图片
* @var array
*/
private $icon = array('│', '├', '└');
private $nbsp = '&nbsp;';
private $str='';
private $ret = '';
private $config=array(
'id'=>'id',
'parentid'=>'parentid',
'name'=>'name',
'child'=>'child',
);
/**
* 构造函数，初始化类
* @param array 2维数组，例如：
* array(
* 1 => array('id'=>'1','parentid'=>0,'name'=>'一级栏目一'),
* 2 => array('id'=>'2','parentid'=>0,'name'=>'一级栏目二'),
* 3 => array('id'=>'3','parentid'=>1,'name'=>'二级栏目一'),
* 4 => array('id'=>'4','parentid'=>1,'name'=>'二级栏目二'),
* 5 => array('id'=>'5','parentid'=>2,'name'=>'二级栏目三'),
* 6 => array('id'=>'6','parentid'=>3,'name'=>'三级栏目一'),
* 7 => array('id'=>'7','parentid'=>3,'name'=>'三级栏目二')
* )
* @param array $config 配置数组字段名称
* @return boolean
*/
public function init($arr=array(),$config=array())
{
$this->arr = $arr;
$this->ret = '';
$this->str='';
if($config) $this->config=array_merge($this->config,$config);
return is_array($arr);
}
/**
* 递归重组节点信息为多维数组
* @param array
* @param int
* @param string
* @param string
* @param string
* @return array
*/
public function get_arraylist(&$node, $pid = 0)
{
$arr = array();
foreach ($node as $v) {
if ($v [$this->config['parentid']] == $pid) {
$v [$this->config['child']] = $this->get_arraylist($node, $v [$this->config['id']]);
$arr [] = $v;
}
}
return $arr;
}
/**
* 得到父级数组的同级数组
* @param int $myid 菜单id
* @return array|mixed
*/
public function get_parent($myid)
{
$newarr = array();
if (!isset($this->arr[$myid])) return false;
$pid = $this->arr[$myid][$this->config['parentid']];//父级id
$pid = $this->arr[$pid][$this->config['parentid']];//祖级id
if (is_array($this->arr)) {
foreach ($this->arr as $id => $a) {
if ($a[$this->config['parentid']] == $pid)
$newarr[$id] = $a;
}
}
return $newarr;
}
/**
* 得到子级数组的同级数组
* @param int $myid
* @return array|mixed
*/
public function get_child($myid)
{
$newarr = array();
if (is_array($this->arr)) {
foreach ($this->arr as $id => $a) {
if ($a[$this->config['parentid']] == $myid)
$newarr[$id] = $a;
}
}
return $newarr ? $newarr : false;
}
/**
* 获取所有子节点
* @param array $lists 数据集
* @param int $pid 父级id
* @param bool $only_id 是否只取id
* @param bool $self 是否包含自身
* @return array
*/
public function get_childs($lists=[],$pid=0,$only_id=false,$self=false)
{
$result = [];
if (is_array($lists)) {
foreach ($lists as $id => $a) {
if ($a[$this->config['parentid']] == $pid) {
$result[] = $only_id?$a[$this->config['id']]:$a;
unset($lists[$id]);
$result = array_merge($result, $this->get_childs($lists,$a[$this->config['id']],$only_id,$self));
}elseif($self && $a[$this->config['id']] == $pid){
$result[] = $only_id?$a[$this->config['id']]:$a;
}
}
}
return $result;
}
/**
* 得到当前位置数组
* @param int 位置
* @param array
* @return array|mixed
*/
public function get_pos($index, &$newarr)
{
$a = array();
if (!isset($this->arr[$index])) return false;
$newarr[] = $this->arr[$index];
$pid = $this->arr[$index][$this->config['parentid']];
if (isset($this->arr[$pid])) {
$this->get_pos($pid, $newarr);
}
//一直到顶级的数组
if (is_array($newarr)) {
krsort($newarr);//降序排序
foreach ($newarr as $v) {
$a[$v[$this->config['id']]] = $v;
}
}
return $a;
}
/**
* 得到树型结构
* @param int $myid，表示获得这个ID下的所有子级
* @param string $str 生成树型结构的基本代码，例如："<option value=\$id \$selected>\$spacer\$name</option>"
* @param int $sid 被选中的ID, 比如在做树形下拉框的时候需要用到
* @param string $adds
* @param string $str_group
* @return string
*/
public function get_tree($myid, $str, $sid = 0, $adds = '', $str_group = '')
{
$number = 1;
//一级栏目
$child = $this->get_child($myid);//得到子级同级数组
if (is_array($child)) {
$total = count($child);//子级数组个数
foreach ($child as $id => $value) {
$j = $k = '';
if ($number == $total) {
$j .= $this->icon[2];//最后1个，前置符号为“└”
} else {
$j .= $this->icon[1];//否则，前置符号为“├”
$k = $adds ? $this->icon[0] : '';//额外前置符号
}
$spacer = $adds ? $adds . $j : '';
$selected = $id == $sid ? 'selected' : '';
@extract($value);
$parentid == 0 && $str_group ? eval("\$nstr = \"$str_group\";") : eval("\$nstr = \"$str\";");//顶级
$this->ret .= $nstr;
$nbsp = $this->nbsp;
$this->get_tree($id, $str, $sid, $adds . $k . $nbsp, $str_group);//递归子级数组
$number++;
}
}
return $this->ret;
}
/**
* 得到树型结构数组
* @param int $myid，表示获得这个ID下的所有子级
* @return array
*/
public function get_tree_array($myid=0)
{
$retarray = array();
//一级栏目数组
$child = $this->get_child($myid);
if (is_array($child)) {
foreach ($child as $id => $value) {
$retarray[$value[$this->config['id']]] = $value;
$retarray[$value[$this->config['id']]][$this->config['child']] = $this->get_tree_array($id);
}
}
return $retarray;
}
/**
* 同get_tree,但允许多选
* @param int $myid，表示获得这个ID下的所有子级
* @param string $str 生成树型结构的基本代码，例如："<option value=\$id \$selected>\$spacer\$name</option>"
* @param int $sid 被选中的ID, 比如在做树形下拉框的时候需要用到
* @param string $adds
* @return string
*/
public function get_tree_multi($myid, $str, $sid = 0, $adds = '')
{
$number = 1;
$child = $this->get_child($myid);
if (is_array($child)) {
$total = count($child);
foreach ($child as $id => $a) {
$j = $k = '';
if ($number == $total) {
$j .= $this->icon[2];
} else {
$j .= $this->icon[1];
$k = $adds ? $this->icon[0] : '';
}
$spacer = $adds ? $adds . $j : '';
$selected = $this->have($sid, $id) ? 'selected' : '';
@extract($a);
eval("\$nstr = \"$str\";");
$this->ret .= $nstr;
$this->get_tree_multi($id, $str, $sid, $adds . $k . $this->nbsp);
$number++;
}
}
return $this->ret;
}
/**
* @param int $myid 要查询的ID
* @param string $str 第一种HTML代码方式
* @param string $str2 第二种HTML代码方式
* @param int $sid 默认选中
* @param string $adds 前缀
* @return string $adds 前缀
*/
public function get_tree_category($myid, $str, $str2, $sid = 0, $adds = '')
{
$number = 1;
$child = $this->get_child($myid);
if (is_array($child)) {
$total = count($child);
foreach ($child as $id => $a) {
$j = $k = '';
if ($number == $total) {
$j .= $this->icon[2];
} else {
$j .= $this->icon[1];
$k = $adds ? $this->icon[0] : '';
}
$spacer = $adds ? $adds . $j : '';
$selected = $this->have($sid, $id) ? 'selected' : '';
@extract($a);
if (empty($html_disabled)) {
eval("\$nstr = \"$str\";");
} else {
eval("\$nstr = \"$str2\";");
}
$this->ret .= $nstr;
$this->get_tree_category($id, $str, $str2, $sid, $adds . $k . $this->nbsp);
$number++;
}
}
return $this->ret;
}
/**
* 同上一类方法，jquery treeview 风格，可伸缩样式（需要treeview插件支持）
* @param int $myid 表示获得这个ID下的所有子级
* @param string $effected_id 需要生成treeview目录数的id
* @param string $str 末级样式
* @param string $str2 目录级别样式
* @param int $showlevel 直接显示层级数，其余为异步显示，0为全部限制
* @param string $style 目录样式 默认 filetree 可增加其他样式如'filetree treeview-famfamfam'
* @param int $currentlevel 计算当前层级，递归使用 适用改函数时不需要用该参数
* @param boolean $recursion 递归使用 外部调用时为FALSE
* @return string
*/
public function get_treeview($myid, $effected_id='example', $str="<span class='file'>\$name</span>", $str2="<span class='folder'>\$name</span>", $showlevel = 0, $style='filetree ', $currentlevel = 1, $recursion=FALSE)
{
$child = $this->get_child($myid);
if (!defined('EFFECTED_INIT')) {
$effected = ' id="' . $effected_id . '"';
define('EFFECTED_INIT', 1);
} else {
$effected = '';
}
$placeholder = '<ul><li><span class="placeholder"></span></li></ul>';
if (!$recursion)
$this->str .='<ul' . $effected . ' class="' . $style . '">';
if (is_array($child)) {
foreach ($child as $id => $a) {
@extract($a);
if ($showlevel > 0 && $showlevel == $currentlevel && $this->get_child($id))
$folder = 'hasChildren'; //如设置显示层级模式@2011.07.01
$floder_status = isset($folder) ? ' class="' . $folder . '"' : '';
$this->str .= $recursion ? '<ul><li' . $floder_status . ' id=\'' . $id . '\'>' : '<li' . $floder_status . ' id=\'' . $id . '\'>';
$recursion = FALSE;
//判断是否为终极栏目
if ($child == 1) {
eval("\$nstr = \"$str2\";");
$this->str .= $nstr;
if ($showlevel == 0 || ($showlevel > 0 && $showlevel > $currentlevel)) {
$this->get_treeview($id, $effected_id, $str, $str2, $showlevel, $style, $currentlevel + 1, TRUE);
} elseif ($showlevel > 0 && $showlevel == $currentlevel) {
$this->str .= $placeholder;
}
} else {
eval("\$nstr = \"$str\";");
$this->str .= $nstr;
}
$this->str .=$recursion ? '</li></ul>' : '</li>';
}
}
if (!$recursion)
$this->str .='</ul>';
return $this->str;
}
/**
* 生成树形菜单
* @param int $myid 表示获得这个ID下的所有子级
* @param string $top_ul_id 顶级菜单ul的id
* @param string $childtpl 子菜单模板
* @param string $parenttpl 父菜单模板
* @param int $showlevel 直接显示层级数，其余为异步显示，0为全部限制
* @param string $ul_class 子菜单ul样式
* @param string $li_class 子菜单li样式
* @param string $top_ul_class 顶级菜单ul的样式
* @param int $currentlevel 计算当前层级，递归使用 适用改函数时不需要用该参数
* @param boolean $recursion 递归使用 外部调用时为FALSE,内部为true
* @param string $dropdown 有子元素时li的class
* @return string
*/
public function get_treeview_menu($myid,$top_ul_id='', $childtpl="<a href='\$href' class='sf-with-ul'>\$menu_name</a>", $parenttpl="<a href='#' target=\'\$menu_target\' class='sf-with-ul'>\$menu_name<span class='sf-sub-indicator'><i class='fa fa-angle-down'></i></span></a>", $showlevel = 0, $ul_class="" ,$li_class="" , $top_ul_class='filetree ', $currentlevel = 1, $recursion=FALSE, $dropdown='hasChild')
{
//取出子菜单数组
$child = $this->get_child($myid);
if (!defined('EFFECTED_INIT')) {
$effected = ' id="' . $top_ul_id . '"';
define('EFFECTED_INIT', 1);
} else {
$effected = '';
}
$placeholder = '<ul><li><span class="placeholder"></span></li></ul>';
if (!$recursion){
$this->str .='<ul' . $effected . ' class="' . $top_ul_class . ' lev_'.$showlevel.'">';//顶级菜单ul
}
$temp_recursion = false;
if (is_array($child)) {
foreach ($child as $id => $a) {
@extract($a);
if ($showlevel > 0 && is_array($this->get_child($a[$this->config['id']]))){
$class_str = " class='$dropdown $li_class'";
}else{
$class_str = " class='$li_class'";
}
$this->str .= $recursion ? "<ul class='".$ul_class." chi_".$currentlevel."'><li $class_str id= 'menu-item-$id'>" : "<li $class_str id= 'menu-item-$id'>";
if ($recursion) $temp_recursion = $recursion;
$recursion = FALSE;
if(strpos($href,'http')!==false&&session('user_token')){
$href=$href.'?token='.session('user_token');
}
//判断是否含有子菜单
if ($this->get_child($a[$this->config['id']])) {
eval("\$nstr = \"$parenttpl\";");
$nstr=html_entity_decode($nstr);
$this->str .= $nstr;
if ($showlevel == 0 || ($showlevel > 0 && $showlevel > $currentlevel)) {
$this->get_treeview_menu($a[$this->config['id']], $top_ul_id, $childtpl, $parenttpl, $showlevel, $ul_class ,$li_class ,$top_ul_class, $currentlevel + 1, TRUE,$dropdown);
} elseif ($showlevel > 0 && $showlevel == $currentlevel) {
$this->str .= $placeholder;
}
} else {
eval("\$nstr = \"$childtpl\";");
$nstr=html_entity_decode($nstr);
$this->str .= $nstr;
}
$this->str .=$recursion ? '</li></ul>' : '</li>';
}
if ($temp_recursion) {
// for ($i = 0; $i<4; $i++) {
// $this->str .= '<li style="height:0px;min-height:0px;"></li>';
// }
}
}
if (!$recursion) $this->str .='</ul>';
return $this->str;
}
/**
* 某list是否有某item
* @param string $list
* @param string $item
* @return int|boolean */
private function have($list, $item)
{
return(strpos(',,' . $list . ',', ',' . $item . ','));
}
}