PHP Infinite Traversal folder sample sharing

Source: Internet
Author: User

  This article mainly introduces the PHP unlimited Traversal folder example, the need for friends can refer to the following

Recently in the ability to PHP directory operations, engaged in a directory infinite traversal:   Use of functions are:   isset () to determine whether a variable is defined   chdir () to change the current directory to the specified directory.   Opendi () opens the directory.   Readdir () read the directory.   GETCWD () gets the current directory.   also used for the  if  get value is about these things:   The following is the code:   Code as follows: <?php if (isset ($_get[' id '))//To determine whether to pass the value of {  & nbsp $s =str_replace (', ' + ', $_get[' id '));     $s =base64_decode ($s);//Accept passed values are generally the absolute strength of the directory to open         chdir ($s);//switch to the directory you want to open   & nbsp } $a =opendir ('. '); /Open current directory while ($c =readdir ($a))//Loop through directory contents file name {                if (false!==) Is_dir ($c))//Judge is the directory or file        {           if ($c = = '. ')     &NB Sp      {              &nbsp             & nbsp  else                {           if ($c = = ' ... ')           {            $w =base64_encode (substr (GETCWD (), 0,strrpos (GETCWD (), ")") The current path plus directory name is the absolute path to the directory            echo "up level". <a href= ' 6.php?id= $w ' > Open </a><br/> ';///When clicked open Absolute path to open   switch to the directory you want to open            }else            {            &NBS P   $w =base64_encode (GETCWD). $c)//The current path plus directory name is the absolute path of the directory            echo "$c". <a href= ' 6.php?id= $w ' > Open </a><br/> ';///When clicked open Absolute path to open   switch to the directory you want to open                               &NBSP,       & nbsp   &NBSP            else            {    &NBS P          echo "$c is not a directory <br/>";           &NBsp   &NBSP}}  ?>
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