The DirectoryIterator::isDir() function is an inbuilt function in PHP which is used to check the current DirectoryIterator item is a directory or not.
Syntax:
bool DirectoryIterator::isDir( void )
Parameters: This function does not accept any parameters.
Return Value: This function returns TRUE if the directory exist, FALSE otherwise.
Below programs illustrate the DirectoryIterator::isDir() function in PHP:
Program 1:
<?php   // Create a directory Iterator $directory = new DirectoryIterator(dirname(__FILE__));   // Loop runs while directory is valid while ($directory->valid()) {       // Check for directory element     if ($directory->isDir()) {         $file = $directory->current();           // Display the filename and its size         echo $file->getFilename() . " | Size: "                . $directory->getSize() . "<br>";     }       // Move to the next element     $directory->next(); }   ?> |
Output:
. | Size: 4096 .. | Size: 12288 dashboard | Size: 4096 img | Size: 0 webalizer | Size: 0 xampp | Size: 0
Program 2:
<?php   // Create a directory Iterator $directory = new DirectoryIterator(dirname(__FILE__));   // Loop runs while directory is valid while ($directory->valid()) {       // Check for directory element     if ($directory->isDir()) {         $file = $directory->current();           // Display file name and last modified time         echo $file->getFilename() . " | MTime: "                . $directory->getMTime() . "<br>";     }       // Move to the next element     $directory->next(); } ?> |
Output:
. | MTime: 1574654324 .. | MTime: 1574540515 dashboard | MTime: 1574350724 img | MTime: 1574350724 webalizer | MTime: 1574350718 xampp | MTime: 1574350724
Note: The output of this function depends on the content of server folder.
Reference: https://www.php.net/manual/en/directoryiterator.isdir.php
