Walkthrough a Directory

Read dir: readdir()

If you need to parse a directory: list all files, retrieve all files (including hidden files) etc, you can use the readdir() function.

NOTE:

• it needs to be used with opendir() and closedir();
• it doesn’t return all the files immediately but one by one, so you need to loop through the readdir() results

// Open the directory and obtain a handle variable
$handle = opendir('.');
// loops through "readdir"
while (false !== ($entry = readdir($handle))) {
    echo $entry . PHP_EOL;
}
// close the handle variable
closedir($handle);