PHP mcDropdown implements a method in which the file path can be selected in the drop-down box

//Get the file list in the specified directory
//$path specifies the directory, the default is the current directory
//$ifchild Whether to display the subdirectory file list, not displayed by default
// $curpath displays the current path, which defaults to starting from the current directory; this is mainly to display and determine the href path
function openpath($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($fullPath))//If it is a directory file
 {
 if($ifchild)//If the display subdirectory is set
 {
 //Recursion
 openpath($path.DIRECTORY_SEPARATOR.$file,$ifchild,$curpath.DIRECTORY_SEPARATOR.$file);
 }
 else
 {
 echo "
$file
 }
 }
 else if($file != basename(__FILE__))//Exclude the currently executing script
 {
 echo "
$file
 }
 else
 {
 echo $file ;
 }
 }
 }
 }
 closedir($handle);
 }

Because we want to provide the path selection function, it would be great if there is a drop-down menu with the path to be selected displayed. .

2. Get the code of all sub-file paths under the current file:

/*Get the file path list in the specified directory
 *$path specifies the directory, the default is the current directory
 *$ifchild whether to get the subdirectory file list, not obtained by default
 *$curpath display The current path starts from the current directory by default
 *&$pach_html_srt Pass a reference to an external variable, because this method may be called recursively, so save it in this way
 * Some information can also be used as a global variable Implementation, changes to variables inside the function also affect the outside.
 *&$path_ref_count The principle is the same as above, a counting flag. If it is recursive, the counter will increase from the last saved value
 */
 function openpath($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))//If the file is a directory
 {
 $path_html_str.='< ;li rel="'.$path_ref_count++.'">';
 $path_html_str.=$file.'';  if($ifchild) 
 { 
 //Recursive 
 openpath($path.DIRECTORY_SEPARATOR .$file,$ifchild,&$path_html_str,&$path_ref_count); 
 } 
 $path_html_str.='
 }
 }
 }
 }
 closedir($handle) ;
 }

With the above method, you can use the jquery mcDropdown plug-in at the front desk to allow users to select the directory they want to enter through the drop-down menu, so it needs to be encapsulated into a specified format:

$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 );
 ?>

In this way, $path_html_str is passed to the front desk, and it is displayed as an unordered list that meets the requirements of mcDropdown, and the corresponding candidate list can be displayed.

The complete code is as follows: 1.test.html

jquery mcDropdown implementation The file path can be selected in the drop-down box_bbs.it-home.org









 Please select a category:

 #categorymenu#

2, test.php

 //Directory information processing
 $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;


 /*Get the list of file paths in the specified directory
 *$ The directory specified by path, defaults to the current directory
 *$ifchild Whether to obtain the subdirectory file list, not obtained by default
 *$curpath Displays the current path, the default is to start from the current directory
 *&$pach_html_srt Pass a reference to an external variable , because this method may be called recursively, so saving
 * some information in this way can also be implemented using global variables. Variable changes inside the function also affect the outside.
 *&$path_ref_count The principle is the same as above, a counting flag. If it is recursive, the counter will increase from the last saved value
 */
 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))//If the file is a directory
 {
 $path_html_str.='< ;li rel="'.$path_ref_count++.'">';
 $path_html_str.=$file.'';  if($ifchild) 
 { 
 //Recursive 
 openpath($path.DIRECTORY_SEPARATOR .$file,$ifchild,&$path_html_str,&$path_ref_count); 
 } 
 $path_html_str.='
 }
 }
 }
 }
 closedir($handle) ;
 }
?>

jquery mcDropdown plug-in download address: http://www.givainc.com/labs/mcdropdown_jquery_plugin.htm.