PHP unlimited classification (with database) (1/2)

This is a PHP infinite-level classification code written using recursion. It is a tree-type infinite-level classification example. The infinity is achieved by using recursion. There are also more advanced writing methods, binary trees to achieve infinite classification. .

php tutorial unlimited classification (with database tutorial) /* This is a PHP infinite-level classification code written using recursion. It is a tree-type infinite-level classification example. The infinity is achieved by using recursion. There are also more advanced writing methods, binary trees to achieve infinite classification. */ ?>

.menu { color:#000000; font-size: 12px; cursor: hand;} function showmenu(menuid) { if(menuid.style.display=="none") { menuid.style.display=""; } else { menuid.style.display="none"; } } 电视树状目录 $globals["id"] =1; $jibie=1; $sql="select * from tvmenu where bid=0"; $result=mysql教程_query($sql,$conn); if(mysql_num_rows($result)>0) treemenu($conn,$result,$jibie,$id); function treemenu($conn,$result,$jibie) //进入函数循环 { $numrows=mysql_num_rows($result); echo " "; for($rows=0;$rows { $menu=mysql_fetch_array($result); $sql="select * from tvmenu where bid=$menu[id]"; $result_sub=mysql_query($sql,$conn); echo " "; //如果该菜单项目有子菜单，则添加javascript onclick语句 if(mysql_num_rows($result_sub)>0) { echo " "; echo " "; } else { echo " "; echo " "; } if($menu[url]!="") echo " $menu[name] "; else echo " $menu[name] 添加 编辑 删除 "; echo " "; if(mysql_num_rows($result_sub)>0) { echo " "; echo " "; echo " "; //将级数加1 $jibie++; treemenu($conn,$result_sub,$jibie); $jibie--; echo " "; } //显示下一菜单 } echo " "; } ?>

添加栏目 栏目名称： 所属分类： $sql="select * from tvmenu"; $que=mysql_query($sql,$conn); while($rs=mysql_fetch_array($que)){ if ($rs['id']==$b) { $selected="selected="selected""; }else{ $selected=""; } ?> " > 1 2

http://www.bkjia.com/PHPjc/632040.html www.bkjia.com true http://www.bkjia.com/PHPjc/632040.html TechArticle 这是一款利用递归写的php无限级分类代码，是一款树型的无限级分类实例，一的无限都是利用递归来实现的，也有更高级的写法，二叉树来...