In what scenarios would using a loop to calculate the total size of files within a folder be more accurate than relying on the "disk_total_space()" function in PHP?

When using the "disk_total_space()" function in PHP, it calculates the total disk space available for the entire disk, not just a specific folder. If you want to calculate the total size of files within a folder accurately, you would need to iterate through each file in the folder and sum up their individual sizes. This method would give you the precise total size of files within that specific folder. 

$folder = "/path/to/folder";
$totalSize = 0;

$files = scandir($folder);

foreach($files as $file){
    if(is_file($folder . '/' . $file)){
        $totalSize += filesize($folder . '/' . $file);
    }
}

echo "Total size of files in folder: " . $totalSize . " bytes";

Keywords

loop calculate total size files folder

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