How to read all the file names under directories and subdirectories in PHP _php tips

This article describes the PHP reading directory and subdirectories of all the file name method, share for everyone to reference. The implementation methods are as follows:

In general, PHP read the directory in the way the file name is indeed a lot, the simplest is scandir, the specific code is as follows:

Copy Code code as follows:

$dir = "./caxa/";
$file =scandir ($dir);
Print_r ($file);

Slightly more complex, from the PHP manual:

Copy Code code as follows:

$dir = "/etc/php5/";
Open a known directory, and proceed to read its contents
if (Is_dir ($dir)) {
if ($dh = Opendir ($dir)) {
while (($file = Readdir ($DH))!== false) {
echo "FileName: $file: filetype:". FileType ($dir. $file). "\ n";
} closedir ($DH);
}
}

These can only read files in the currently specified directory, and files in the subdirectory cannot be read. I've written myself a loop. Deletes a piece of code for all directories, and you need to delete all files, including multiple layers, on a subdirectory-by-directory basis. But just read out the file name, a little more complex, the Internet to find a can use, the original code has the wrong hint, changed the reference & $data place, as follows:

Copy Code code as follows:

function Searchdir ($path,& $data) {
if (Is_dir ($path)) {
$DP =dir ($path);
while ($file = $DP->read ()) {
if ($file!= '. ') && $file!= ' ... ') {
Searchdir ($path. ' /'. $file, $data);
}
}
$DP->close ();
}
if (Is_file ($path)) {
$data []= $path;
}
}

function Getdir ($dir) {
$data =array ();
Searchdir ($dir, $data);
return $data;
}

Print_r (Getdir ('. '));

I hope this article will help you with your PHP program design.