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利用php+mcDropdown实现文件路径可在下拉框选择

Jun 13, 2016 am 11:41 AM
php drop down information use accomplish document use Table of contents read path conduct choose

最近用php进行文件目录信息读取,在网上弄到下面一段代码:
//获取指定目录下的文件列表
//$path 指定的目录,默认为当前目录
//$ifchild 是否显示子目录文件列表,默认不显示
//$curpath 显示当前的路径,默认为从当前目录开始;这个主要是为了显示确定href路径

复制代码 代码如下:


    function openpath($path=".",$ifchild=false,$curpath=".") 
    { 

        $handle = opendir($path); 
        if($handle) 
        { 
           while(false !== ($file = readdir($handle))) 
           { 
               if ($file != "." && $file != "..")  
               { 
                    $fullPath = $path.DIRECTORY_SEPARATOR.$file; 
                    if(is_dir($fullPath))//如果是目录文件 
                    { 
                         if($ifchild)//如果设置了显示子目录 
                         { 
                            //递归 
                            openpath($path.DIRECTORY_SEPARATOR.$file,$ifchild,$curpath.DIRECTORY_SEPARATOR.$file); 
                         } 
                         else 
                         { 
                            echo "

  • $file
  • \n"; 
                             } 
                        } 
                        else if($file != basename(__FILE__))//排除当前执行脚本 
                        { 
                            echo "
  • $file
  • \n"; 
                        } 
                        else 
                        { 
                            echo $file; 
                        } 
                   } 
               } 
            } 
            closedir($handle); 
        } 

    因为自己要提供路径选择的功能,最好是有一个下拉菜单,里面有待选路径的显示,这样方便很多,于是自己改了改,把路径输出成一个无序列表。
    下面是一个取得当前文件下所有子文件路径的代码:

    复制代码 代码如下:


    /*获取指定目录文件路径列表
     *$path 指定的目录,默认为当前目录
     *$ifchild 是否获取子目录文件列表,默认不获取
     *$curpath 显示当前的路径,默认为从当前目录开始
     *&$pach_html_srt 传递一个外部变量的引用进来,因为此方法有可能被递归调用,所以以这样的方式来保存
     *      一些信息,也可以用全局变量来实现,在函数内部变量改变也影响到外部。
     *&$path_ref_count 原理同上,一个计数标志,如果递归,计数器从上一次保存的值开始自增
     */
    function openpath($path=".",$ifchild=false,&$path_html_str,&$path_ref_count)

        $handle = opendir($path);
     if($handle)
     {
        while(false !== ($file = readdir($handle)))
        {
         if ($file != "." && $file != "..")
         {
        $fullPath = $path.DIRECTORY_SEPARATOR.$file;
        if(is_dir($fullPath))//如果文件是目录
        {
         $path_html_str.='

  • ';
         $path_html_str.=$file.'
      ';
            if($ifchild)
            {
            //递归
            openpath($path.DIRECTORY_SEPARATOR.$file,$ifchild,&$path_html_str,&$path_ref_count);
            }
            $path_html_str.='
  • ';
        }
         }
        }
     }
     closedir($handle);
    }

    有了上面的方法,我就可以在前台用jquery mcDropdown插件来让用户可以通过下拉菜单选择想进入的目录,所以需要封装成指定格式:

    复制代码 代码如下:


    $path_ref_count = 1;
    $path_html_str ='';
    openpath(".",true,&$path_html_str,&$path_ref_count);
    $path_html_str = '

      '.$path_html_str.'
    ';
    $path_html_str = str_replace ( "
      ", '', $path_html_str );

      这样我把$path_html_str传到前台,显示出来的就是一个符合mcDropdown要求的无序列表,就可以显示相应的待选列表了。
      完整代码如下:
      test.html

      复制代码 代码如下:





       
       test









       


        Please select a category:

        
       


       #categorymenu#



      test.php

      复制代码 代码如下:


      //目录信息处理
      $path_ref_count = 1;
      $path_html_str ='';
      openpath(".",true,&$path_html_str,&$path_ref_count);
      $path_html_str = '

        '.$path_html_str.'
      ';
      $path_html_str = str_replace ( "
        ", '', $path_html_str );
        //var_dump($path_info);
        //var_dump($path_html_str);
        $str_buffer = file_get_contents (dirname(__FILE__).DIRECTORY_SEPARATOR.'test.html');
        $str_buffer = str_replace ( "#categorymenu#", $path_html_str, $str_buffer );
        $str_buffer = str_replace ( "#delim#", DIRECTORY_SEPARATOR, $str_buffer );
        echo $str_buffer;
        /*获取指定目录文件路径列表
         *$path 指定的目录,默认为当前目录
         *$ifchild 是否获取子目录文件列表,默认不获取
         *$curpath 显示当前的路径,默认为从当前目录开始
         *&$pach_html_srt 传递一个外部变量的引用进来,因为此方法有可能被递归调用,所以以这样的方式来保存
         *      一些信息,也可以用全局变量来实现,在函数内部变量改变也影响到外部。
         *&$path_ref_count 原理同上,一个计数标志,如果递归,计数器从上一次保存的值开始自增
         */
        function openpath($path=".",$ifchild=false,&$path_html_str,&$path_ref_count)

            $handle = opendir($path);
         if($handle)
         {
            while(false !== ($file = readdir($handle)))
            {
             if ($file != "." && $file != "..")
             {
            $fullPath = $path.DIRECTORY_SEPARATOR.$file;
            if(is_dir($fullPath))//如果文件是目录
            {
             $path_html_str.='
      • ';
             $path_html_str.=$file.'
          ';
                if($ifchild)
                {
                //递归
                openpath($path.DIRECTORY_SEPARATOR.$file,$ifchild,&$path_html_str,&$path_ref_count);
                }
                $path_html_str.='
      • ';
            }
             }
            }
         }
         closedir($handle);
        }
        ?>

        jquery mcDropdown 插件可以在这里下载:http://www.givainc.com/labs/mcdropdown_jquery_plugin.htm
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