PHP traverses directories and returns statistical directory size_PHP tutorial

Copy code The code is as follows:

$dirname = "test1";
//mkdir( $dirname);

//Traverse one level of directories
function listdir($dirname) {
$ds = opendir($dirname);
while($file = readdir($ds )) {
$path = $dirname.'/'.$file;
if(is_dir($file)) {
echo "DIR:".$file."
";
if($file != "." && $file != "..") {
listdir($file);
}
}
else {
echo " FILE:".$file . "
";
}
}
}

function totdir($dirname) { //Slightly modify listdir
static $tot = 0;
$ds = opendir($dirname);
while($file = readdir($ds)) {
$path = $dirname.'/'.$file;
if(is_dir($file)) {
//echo "DIR:".$file."
";
if($file != "." && $file != ". .") {
$tot += totdir($file);
}
}
else {
//echo "FILE:".$file . "
" ;
$tot += filesize($path);
}
}

//Return total
return $tot;
}

listdir ($dirname);

echo totdir($dirname)." bytes";

?>

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