PHP | DirectoryIterator getSize() Function

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The DirectoryIterator::getSize() function is an inbuilt function in PHP which is used to returns the size of the current DirectoryIterator item.

Syntax:

int DirectoryIterator::getSize( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns the size of the file, in bytes.

Below programs illustrate the DirectoryIterator::getSize() 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 it is directory or not 
    if ($directory->isDir()) { 
        $file = $directory->current(); 
        echo $file->getFilename() . " | Size: "
                . $directory->getSize() . "<br>"; 
    } 
  
    // Move to next element of directory 
    $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 for each element of directory 
foreach($directory as $dir) { 
      
    $file = $directory->current(); 
      
    echo $dir->key() . " => " .  
        $file->getFilename() . " | Size: " . 
        $dir->getSize() . "<br>"; 
} 
  
?> 

Output:

0 => . | Size: 4096
1 => .. | Size: 12288
2 => applications.html | Size: 3607
3 => bitnami.css | Size: 177
4 => dashboard | Size: 4096
5 => favicon.ico | Size: 30894
6 => zambiatek.PNG | Size: 22358
7 => gfg.php | Size: 273
8 => img | Size: 0
9 => index.php | Size: 260
10 => webalizer | Size: 0
11 => xampp | Size: 0

Note: The output of this function depends on the content of server folder.

Reference: https://www.php.net/manual/en/directoryiterator.getsize.php