PHP directory operation example code_PHP tutorial

Copy code The code is as follows:

/**
    * listdir
   */
header("content-type:text/html;charset=utf-8");

$dirname = "./final/factapplication";

function listdir($dirname) {
$ds = opendir($dirname);
while (false !== ($file = readdir($ds))) {
$path = $ dirname.'/'.$file;
             if ($file != '.' && $file != '..') {
                                                                                                                        path);
} else {
}
closedir($ds);
}
listdir($dirname);

Core: Classic applications of recursion, and basic operations on files and directories.

Copy code

The code is as follows: /**

    * copydir

   */

$srcdir = "../fileupload";
$dstdir = "b";
function copydir($srcdir, $dstdir) {

mkdir($dstdir);
$ds = opendir($srcdir);

while (false !== ($file = readdir($ds))) {
$path = $srcdir."/".$file;
$dstpath = $dstdir."/". $file;

if ($file != "." && $file != "..") {

if (is_dir($path)) {
copydir($path, $dstpath);
                                                                                                                                                      >      closedir($ds);

}

copydir($srcdir, $dstdir);



Core: copy function.

Copy code

The code is as follows:

/**
    * get pierced
   */

$dirname = 'a';

function deldir($dirname) {
$ds = opendir($dirname);

while (false !== ($file = readdir($ds))) {
$path = $dirname.'/'.$file;
if($file != '.' && $file != '..') {
                                                                                                                                                                                                  
                                                                                                                                       🎜>


Core: Note that unlink deletes the file with path.




Copy code

The code is as follows:

    * dirsize

   */

$dirname = "a"; function dirsize($dirname) { static $tot; $ds = opendir($dirname);

while (false !== ($file = readdir($ds))) {

$path = $dirname.'/'.$file;
if ($file != '.' && $file != '..') {
if(is_dir($path)) {
               dirsize($path);
                                                                                                             🎜>                                                                                                                                                                                                                                    closedir($ds);

}

echo dirsize($dirname);


Core: Understand recursive functions by determining where $tot returns.




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Copy the code as follows: ?php /*** listdir*/ header("content-type:text/ html;charset=utf-8"); $dirname = "./final/factapplication"; function listdir($dirname) { $ds = opendir($d...