What alternative method can be used to get the total size of a directory including its subdirectories in PHP?

To get the total size of a directory including its subdirectories in PHP, one alternative method is to use the RecursiveIteratorIterator and RecursiveDirectoryIterator classes to iterate through all files and subdirectories, summing up their sizes. This method allows you to calculate the total size efficiently without manually traversing each subdirectory. 

function getDirectorySize($dir){
    $totalSize = 0;
    
    $iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir));
    
    foreach($iterator as $file){
        $totalSize += $file->getSize();
    }
    
    return $totalSize;
}

$directory = '/path/to/directory';
$totalSize = getDirectorySize($directory);
echo "Total size of directory $directory: " . $totalSize . " bytes";

Keywords

PHP directory size subdirectories recursive.

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