php树形菜单类.rar

<? @set_time_limit(1200); /* //类文件char_class.php +-------------------------------------------------------------------------- | 数据库说明 | bid 本类id | top_id 父类id | catname 本类名称 | catord 本类序列号 | catiffb 显示状态 | attr | +-------------------------------------------------------------------------- */ class Char_class { /* +------------------------------------------------------------------------------------------------------ | 功能说明： 根据类表生成树型图. | 调用部分 ： | ======================================== | $test_array = get_page_children($node_cache,0, $node_cache,0); | | echo "\n<select name=select>\n"; | | $last = "├─"; | foreach($test_array as $key=>$val) | { | $item = str_repeat(" │ ",$val['depth']); | echo "<option value=".$val['id'].">".$item.$last.$val['name']."</option>\n"; | $item = ''; | } | +------------------------------------------------------------------------------------------------------ */ function &get_page_children($id, $node,$depth=0) { global $node_cache; if ( empty($node) ) { $node = &$node_cache; } $depth++; $tree_list = array(); foreach ($node as $leap) { if ($leap['parentId'] == $id) { $leap['depth'] = $depth - 1; $tree_list[] = $leap; if ( $children = $this->get_page_children($leap['id'], $node,$depth)) { $tree_list = array_merge($tree_list, $children); } } } return $tree_list; } /* +------------------------------------------------------------------------------------------------------ | 功能说明： 利用根据类表生成树型图的函数，生成一个下拉列表. | +------------------------------------------------------------------------------------------------------ */ function get_page_select($Selectname,$Id,$Ex) { global $node_cache; $Array = $this->get_page_children(0, $node_cache,0); $Table = ""; $Table .=" <select name='".$Selectname."' ".$Ex.">\n"; $Table .=" <option value=0>├─Root</option>\n"; $last = "├─"; foreach($Array as $key=>$val) { $item = str_repeat("│",$val['depth']); $Table .= "<option value='".$val['id']."'"; if (intval($Id)==intval($val['id'])){ $Table .= " selected "; } $Table .= ">".$item.$last.$val['name']."</option>\n"; $item = ''; } return $Table; } //在前台搜索中用的 function get_page_select_forsearch($Zero_say,$Selectname,$Id,$Ex) { global $node_cache; $Array = $this->get_page_children(0, $node_cache,0); $Table = ""; $Table .=" <select name='".$Selectname."' ".$Ex.">\n"; $Table .=" <option value=0>".$Zero_say."</option>\n"; $last = "├─"; foreach($Array as $key=>$val) { $item = str_repeat("│",$val['depth']); $Table .= "<option value='".$val['id']."'"; if (intval($Id)==intval($val['id'])){ $Table .= " selected "; } $Table .= ">".$item.$last.$val['name']."</option>\n"; $item = ''; } return $Table; } } ?>