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<?php
#Delete file and folders
function delFilesFolders($dir) {
    if (is_file($dir)) {
        return unlink($dir);
    }
    elseif (is_dir($dir)) {
        $scan = glob(rtrim($dir,'/').'/*');
        foreach($scan as $index=>$path) {
            delFilesFolders($path);
        }
        return @rmdir($dir);
    }
}
#Call function with directory name
delFilesFolders($dir)