以下是一个风格类似windows资源管理器的树型菜单 将下面的脚本包含到你的页面中 另外需要从资源管理器中截取一些gif图片,祥见脚本中的注释 菜单结构文件的格式为: tree level|item text|item link|link target|last item in subtree 例如 .<b>Demo menu</b>|javascript: alert('This is the demo menu for TreeMenu 1.0'); ..<b>目录1</b> ...<b>子目录 1.1</b> ....item 1.1.1|javascript: alert('Item 1.1.1'); ....item 1.1.2|javascript: alert('Item 1.1.1'); ...item 1.2|javascript: alert('Item 1.2'); ...item 1.3|javascript: alert('Item 1.3'); ..<b>子目录 2</b> ...item 2.1|javascript: alert('Item 2.1'); ...item 2.2|javascript: alert('Item 2.2'); ...<b>子目录 2.3</b> ....item 2.3.1|javascript: alert('Item 2.3.1'); ....item 2.3.2|javascript: alert('Item 2.3.2'); <?php // file:tremenu.inc // PHP TreeMenu ///////////////// // 初始化 // ///////////////// $treefile = "demomenu.txt";//设置有菜单结构的文件 if(isset($PATH_INFO)) $script = $PATH_INFO; else $script = $SCRIPT_NAME; //以下图片可截取windows资源管理器中的相应位置的图 $img_expand = "tree_expand.gif";//形如资源管理器中可扩展节点+ $img_collapse = "tree_collapse.gif";//形如资源管理器中已扩展节点- $img_line = "tree_vertline.gif";//形如| $img_split = "tree_split.gif";//形如|- $img_end = "tree_end.gif";//形如L $img_leaf = "tree_leaf.gif";//形如o $img_spc = "tree_space.gif";//空白图 //以下是菜单处理脚本 $maxlevel=0; $cnt=0; $fd = fopen($treefile, "r"); if ($fd==0) die("treemenu.inc : Unable to open file ".$treefile); while ($buffer = fgets($fd, 4096)) { $tree[$cnt][0]=strspn($buffer,"."); $tmp=rtrim(substr($buffer,$tree[$cnt][0])); $node=explode("|",$tmp); $tree[$cnt][1]=$node[0]; $tree[$cnt][2]=$node[1]; $tree[$cnt][3]=$node[2]; $tree[$cnt][4]=0; if ($tree[$cnt][0] > $maxlevel) $maxlevel=$tree[$cnt][0]; $cnt++; } fclose($fd); for ($i=0; $i<count($tree); $i++) { $expand[$i]=0; $visible[$i]=0; $levels[$i]=0; } if ($p!="") $explevels = explode("|",$p); $i=0; while($i<count($explevels)) { $expand[$explevels[$i]]=1; $i++; } $lastlevel=$maxlevel; for ($i=count($tree)-1; $i>=0; $i--) { if ( $tree[$i][0] < $lastlevel ) for ($j=$tree[$i][0]+1; $j <= $maxlevel; $j++) $levels[$j]=0; if ( $levels[$tree[$i][0]]==0 ) { $levels[$tree[$i][0]]=1; $tree[$i][4]=1; } else $tree[$i][4]=0; $lastlevel=$tree[$i][0]; } for ($i=0; $i < count($tree); $i++) if ($tree[$i][0]==1) $visible[$i]=1; for ($i=0; $i < count($explevels); $i++) { $n=$explevels[$i]; if ( ($visible[$n]==1) && ($expand[$n]==1) ) { $j=$n+1; while ( $tree[$j][0] > $tree[$n][0] ) { if ($tree[$j][0]==$tree[$n][0]+1) $visible[$j]=1; $j++; } } } for ($i=0; $i<$maxlevel; $i++) $levels[$i]=1; $maxlevel++; echo "<table cellspacing=0 cellpadding=0 border=0 cols=".($maxlevel+3).">\n"; echo "<tr>"; for ($i=0; $i<$maxlevel; $i++) echo "<td width=16></td>"; echo "<td width=100%> </td></tr>\n"; $cnt=0; while ($cnt<count($tree)) { if ($visible[$cnt]) { echo "<tr>"; $i=0; while ($i<$tree[$cnt][0]-1) { if ($levels[$i]==1) echo "<td><a name='$cnt'></a><img src=\"".$img_line."\"></td>"; else echo "<td><a name='$cnt'></a><img src=\"".$img_spc."\"></td>"; $i++; } if ($tree[$cnt][4]==1) { echo "<td><img src=\"".$img_end."\"></td>"; $levels[$tree[$cnt][0]-1]=0; } else { echo "<td><img src=\"".$img_split."\"></td>"; $levels[$tree[$cnt][0]-1]=1; } if ($tree[$cnt+1][0]>$tree[$cnt][0]) { $i=0; $params="?p="; while($i<count($expand)) { if ( ($expand[$i]==1) && ($cnt!=$i) || ($expand[$i]==0 && $cnt==$i)) { $params=$params.$i; $params=$params."|"; } $i++; } if ($expand[$cnt]==0) echo "<td><a href=\"".$script.$params."#$cnt\"><img src=\"".$img_expand."\" border=no></a></td>"; else echo "<td><a href=\"".$script.$params."#$cnt\"><img src=\"".$img_collapse."\" border=no></a></td>"; } else echo "<td><img src=\"".$img_leaf."\"></td>"; if ($tree[$cnt][2]=="") echo "<td colspan=".($maxlevel-$tree[$cnt][0]).">".$tree[$cnt][1]."</td>"; else echo "<td colspan=".($maxlevel-$tree[$cnt][0])."><a href=\"".$tree[$cnt][2]."\" target=\"".$tree[$cnt][3]."\">".$tree[$cnt][1]."</a></td>"; echo "</tr>\n"; } $cnt++; } echo "</table>\n"; ?> 摘自:编程爱好者 |