php无限级分类(带数据库)(1/2)
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，二叉树来实现无限分类了。
| 代码如下 | 复制代码 |
| <!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd"> <html xmlns="http://www.phprm.com/1999/xhtml"> <head> <meta http-equiv="content-type" content="text/html; charset=gb2312" /> <head> <style type="text/css教程"> <!-- .menu { color:#000000; font-size: 12px; cursor: hand;} </style> <script type="text/网页特效"> function showmenu(menuid) { if(menuid.style.display=="none") { menuid.style.display=""; } else { menuid.style.display="none"; } } </script> <title>电视树状目录</title> </head> <body> <?php $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 "<table cellpadding='0' cellspacing='0' border='0'>"; for($rows=0;$rows<$numrows;$rows++) { $menu=mysql_fetch_array($result); $sql="select * from tvmenu where bid=$menu[id]"; $result_sub=mysql_query($sql,$conn); echo "<tr>"; //如果该菜单项目有子菜单，则添加javascript onclick语句 if(mysql_num_rows($result_sub)>0) { echo "<td width='20'><img src='+.gif' border='0'></td>"; echo "<td class='menu' onclick='javascript:showmenu(menu".$globals["id"].");'>"; } else { echo "<td width='20'><img src='-.gif' border='0'></td>"; echo "<td class='menu'>"; } if($menu[url]!="") echo "<a href='$menu[url]'>$menu[name]</a> "; else echo "<a href='#'>$menu[name]</a> <a href='?b={$menu[id]}&tpye=add'> 添加</a> <a href='?b={$menu[id]}&tpye=edit'> 编辑</a> <a href='?b={$menu[id]}&action=del'> 删除</a>"; echo "</td> </tr>"; if(mysql_num_rows($result_sub)>0) { echo "<tr id=menu".$globals["id"]++." style='display:none'>"; echo "<td width='20'> </td>"; echo "<td>"; //将级数加1 $jibie++; treemenu($conn,$result_sub,$jibie); $jibie--; echo "</td></tr>"; } //显示下一菜单 } echo "</table>"; } ?> <br /> <br /> <?php if ($tpye=="add") { ?> <table width="551" border="0" cellpadding="0" cellspacing="1" bgcolor="#cccccc"> <form action="" method="post" name="form1"> <tr> <td height="28" colspan="2" align="center" bgcolor="#ffffff">添加栏目</td> </tr> <tr> <td width="246" height="28" align="right" bgcolor="#ffffff">栏目名称：</td> <td width="302" height="28" bgcolor="#ffffff"><input name="name" type="text" id="name" /></td> </tr> <tr> <td height="28" align="right" bgcolor="#ffffff">所属分类：</td> <td height="28" bgcolor="#ffffff"><select name="bid"> <?php $sql="select * from tvmenu"; $que=mysql_query($sql,$conn); while($rs=mysql_fetch_array($que)){ if ($rs['id']==$b) { $selected="selected="selected""; }else{ $selected=""; } ?> <option value="<?php echo $rs["id"]; ?>" <?php echo $selected;?>><?php echo $rs["name"]; ?></option> <?php }?> </select> </td> </tr> <tr> <td height="28" colspan="2" align="center" bgcolor="#ffffff"><input type="submit" name="submit" value="提 交" /></td> </tr> </form> </table> <?php }?> |
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