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："\$spacer\$name" * @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 = '') { $parent_id = ''; $nstr = ''; $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); $parent_id == 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 $this->ret; } public function get_authTree($myid){ $id = ''; $nstr = ''; $child = $this->get_child($myid); if (is_array($child)) { $level = current($child); $text = isset($this->text[$level['level']]) ? $this->text[$level['level']] : end($this->text); foreach($child as $k=>$v){ @extract($v); if($this->get_child($id)){ eval("\$nstr = \"$text[0]\";"); $this->html .= $nstr; self::get_authTree($id); eval("\$nstr = \"$text[1]\";"); $this->html .= $nstr; }else{ $a = $this->text['other']; eval("\$nstr = \"$a\";"); $this->html .= $nstr; } } } return $this->html; } /** * 得到子级数组 * @param int * @return array */ public function get_child($myid) { $a = $newarr = array(); if (is_array($this->arr)) { foreach ($this->arr as $id => $a) { if ($a['parent_id'] == $myid) $newarr[$id] = $a; } } return $newarr ? $newarr : false; } /** * 递归获取级别 * @param int $id ID * @param array $array 所有菜单 * @param int $i 所在级别 * @return array */ public function get_level($id, $array = array(), $i = 0) { if ($array[$id]['parent_id']==0 || empty($array[$array[$id]['parent_id']]) || $array[$id]['parent_id']==$id){ return $i; }else{ $i++; return self::get_level($array[$id]['parent_id'],$array,$i); } } }