<?php namespace Vendor\Tree; /** * 通用的树型类,可以生成任何树型结构 */ 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 */ public $icon = array(‘│‘, ‘├‘, ‘└‘); public $nbsp = " "; private $str =‘‘; /** * @access private */ public $ret = ‘‘; /** * 构造函数,初始化类 * @param array 2维数组,例如: * array( * 1 => array(‘id‘=>‘1‘,‘parentid‘=>0,‘name‘=>‘一级栏目一‘), * 2 => array(‘id‘=>‘2‘,‘parentid‘=>0,‘name‘=>‘一级栏目二‘), * 3 => array(‘id‘=>‘3‘,‘parentid‘=>1,‘name‘=>‘二级栏目一‘), * 4 => array(‘id‘=>‘4‘,‘parentid‘=>1,‘name‘=>‘二级栏目二‘), * 5 => array(‘id‘=>‘5‘,‘parentid‘=>2,‘name‘=>‘二级栏目三‘), * 6 => array(‘id‘=>‘6‘,‘parentid‘=>3,‘name‘=>‘三级栏目一‘), * 7 => array(‘id‘=>‘7‘,‘parentid‘=>3,‘name‘=>‘三级栏目二‘) * ) */ public function init($arr=array()) { $this->arr = $arr; $this->ret = ‘‘; return is_array($arr); } /** * 得到父级数组 * @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 $newarr; } /** * 得到子级数组 * @param int * @return array */ public function get_child($myid) { $a = $newarr = array(); if (is_array($this->arr)) { foreach ($this->arr as $id => $a) { if ($a[‘parentid‘] == $myid) $newarr[$id] = $a; } } return $newarr ? $newarr : false; } /** * 得到当前位置数组 * @param int * @return array */ public function get_pos($myid, &$newarr) { $a = array(); if (!isset($this->arr[$myid])) return false; $newarr[] = $this->arr[$myid]; $pid = $this->arr[$myid][‘parentid‘]; if (isset($this->arr[$pid])) { $this->get_pos($pid, $newarr); } if (is_array($newarr)) { krsort($newarr); foreach ($newarr as $v) { $a[$v[‘id‘]] = $v; } } return $a; } /** * 得到树型结构 * @param int ID,表示获得这个ID下的所有子级 * @param string 生成树型结构的基本代码,例如:"<option value=\$id \$selected>\$spacer\$name</option>" * @param int 被选中的ID,比如在做树型下拉框的时候需要用到 * @return string */ public function get_tree($myid, $str, $sid = 0, $adds = ‘‘, $str_group = ‘‘) { $number = 1; //一级栏目 $child = $this->get_child($myid); if (is_array($child)) { $total = count($child); foreach ($child as $id => $value) { $j = $k = ‘‘; if ($number == $total) { $j .= $this->icon[2]; } else { $j .= $this->icon[1]; $k = $adds ? $this->icon[0] : ‘‘; } $spacer = $adds ? $adds . $j : ‘‘; $selected = $id == $sid ? ‘selected‘ : ‘‘; @extract($value); $parentid == 0 && $str_group ? eval("\$nstr = \"$str_group\";") : eval("\$nstr = \"$str\";"); $this->ret .= $nstr; $nbsp = $this->nbsp; $this->get_tree($id, $str, $sid, $adds . $k . $nbsp, $str_group); $number++; } } return $this->ret; } /** * 得到树型结构数组 * @param int ID,表示获得这个ID下的所有子级 * @param string 生成树型结构的基本代码,例如:"<option value=\$id \$selected>\$spacer\$name</option>" * @param int 被选中的ID,比如在做树型下拉框的时候需要用到 * @return string */ public function get_tree_array($myid, $str, $sid = 0, $adds = ‘‘, $str_group = ‘‘) { $retarray = array(); //一级栏目数组 $child = $this->get_child($myid); if (is_array($child)) { //数组长度 $total = count($child); foreach ($child as $id => $value) { @extract($value); $retarray[$value[‘id‘]] = $value; $retarray[$value[‘id‘]]["child"] = $this->get_tree_array($id, ‘‘); } } return $retarray; } /** * 同上一方法类似,但允许多选 */ public function get_tree_multi($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 . ‘ ‘); $number++; } } return $this->ret; } /** * @param integer $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 integer $sid 默认选中 * @param integer $adds 前缀 */ public function get_tree_category($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 . ‘ ‘); $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 $myid 表示获得这个ID下的所有子级 * @param $effected_id 需要生成treeview目录数的id * @param $str 末级样式 * @param $str2 目录级别样式 * @param $showlevel 直接显示层级数,其余为异步显示,0为全部限制 * @param $style 目录样式 默认 filetree 可增加其他样式如‘filetree treeview-famfamfam‘ * @param $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 $recursion 递归使用 外部调用时为FALSE */ function get_treeview($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="‘ . $style . ‘">‘; foreach ($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; } /** * 同上一类方法,jquery treeview 风格,可伸缩样式(需要treeview插件支持) * @param $myid 表示获得这个ID下的所有子级 * @param $effected_id 需要生成treeview目录数的id * @param $str 末级样式 * @param $str2 目录级别样式 * @param $showlevel 直接显示层级数,其余为异步显示,0为全部限制 * @param $style 目录样式 默认 filetree 可增加其他样式如‘filetree treeview-famfamfam‘ * @param $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 $recursion 递归使用 外部调用时为FALSE * @param $dropdown 有子元素时li的class */ function get_treeview_menu($myid,$effected_id=‘example‘, $str="<span class=‘file‘>\$name</span>", $str2="<span class=‘folder‘>\$name</span>", $showlevel = 0, $ul_class="" ,$li_class="" , $style=‘filetree ‘, $currentlevel = 1, $recursion=FALSE, $dropdown=‘hasChild‘) { $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="‘ . $style . ‘">‘; } foreach ($child as $id => $a) { @extract($a); if ($showlevel > 0 && is_array($this->get_child($a[‘id‘]))){ $floder_status = " class=‘$dropdown $li_class‘"; }else{ $floder_status = " class=‘$li_class‘";; } $this->str .= $recursion ? "<ul class=‘$ul_class‘><li $floder_status id= ‘menu-item-$id‘>" : "<li $floder_status id= ‘menu-item-$id‘>"; $recursion = FALSE; //判断是否为终极栏目 if ($this->get_child($a[‘id‘])) { eval("\$nstr = \"$str2\";"); $this->str .= $nstr; if ($showlevel == 0 || ($showlevel > 0 && $showlevel > $currentlevel)) { $this->get_treeview_menu($a[‘id‘], $effected_id, $str, $str2, $showlevel, $ul_class ,$li_class ,$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; } /** * 获取子栏目json * Enter description here ... * @param unknown_type $myid */ public function creat_sub_json($myid, $str=‘‘) { $sub_cats = $this->get_child($myid); $n = 0; if (is_array($sub_cats)) foreach ($sub_cats as $c) { $data[$n][‘id‘] = iconv(CHARSET, ‘utf-8‘, $c[‘catid‘]); if ($this->get_child($c[‘catid‘])) { $data[$n][‘liclass‘] = ‘hasChildren‘; $data[$n][‘children‘] = array(array(‘text‘ => ‘ ‘, ‘classes‘ => ‘placeholder‘)); $data[$n][‘classes‘] = ‘folder‘; $data[$n][‘text‘] = iconv(CHARSET, ‘utf-8‘, $c[‘catname‘]); } else { if ($str) { @extract(array_iconv($c, CHARSET, ‘utf-8‘)); eval("\$data[$n][‘text‘] = \"$str\";"); } else { $data[$n][‘text‘] = iconv(CHARSET, ‘utf-8‘, $c[‘catname‘]); } } $n++; } return json_encode($data); } private function have($list, $item) { return(strpos(‘,,‘ . $list . ‘,‘, ‘,‘ . $item . ‘,‘)); } }
时间: 2024-10-11 08:07:47