Write a function to traverse the files and subfolders in the folder according to the foreground output format.

Lateral view. How does the phpsys-class.admin.php modify code?

function my_scandir($file){    if($f = opendir($file)){        while($r = readdir($f)){            if($r != '..' && $r != '.'){                $c = $file.'/'.$r;                if(is_dir($c)){                    echo $r.'
';                    my_scandir($c);                }else{                    echo $r.'
';                }            }        }    }}my_scandir('clone2');

Foreground output is
Public
Admin. php
Css
Admin.css
Style.css
View. php
Sys
Class. admin. php
I want this effect
Public
-Admin. php
-Css
--Admin.css
--Style.css
View. php
Sys
-Class. admin. php
How to modify the code?

Reply content:

function my_scandir($file){    if($f = opendir($file)){        while($r = readdir($f)){            if($r != '..' && $r != '.'){                $c = $file.'/'.$r;                if(is_dir($c)){                    echo $r.'
';                    my_scandir($c);                }else{                    echo $r.'
';                }            }        }    }}my_scandir('clone2');

Foreground output is
Public
Admin. php
Css
Admin.css
Style.css
View. php
Sys
Class. admin. php
I want this effect
Public
-Admin. php
-Css
--Admin.css
--Style.css
View. php
Sys
-Class. admin. php
How to modify the code?

Add a parameter $ depth. The default value is 0.

$ Depth minus signs are output before the file name.

Then, $ depth is added to 1 for each recursion and then called.

Common Syntax:

function read_dir_content($parent_dir, $depth = 0){    $str_result = "";    $str_result .= "
". dirname($parent_dir) ."
";    $str_result .= "
  
  

    "; if ($handle = opendir($parent_dir)) { while (false !== ($file = readdir($handle))) { if(in_array($file, array('.', '..'))) continue; if( is_dir($parent_dir . "/" . $file) ){ $str_result .= " 
   
" . read_dir_content($parent_dir . "/" . $file, $depth++) . "
"; } $str_result .= " 
   
{$file}
"; } closedir($handle); } $str_result .= " 
  
";    return $str_result;}echo "
  
  

    " . read_dir_content("/folder") . " 
  
";

If your php is> 5.31:

function iterateDirectory($i){    echo '
  
  

    '; foreach ($i as $path) { if ($path->isDir()) { echo ' 
   
'; iterateDirectory($path); echo '
'; } else { echo ' 
   
'.$path.'
'; } } echo ' 
  
';}$dir = '/folder';$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir));iterateDirectory($iterator);