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PHP | DirectoryIterator isDir() Function

Last Updated : 07 Mar, 2024

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.

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