delete some folder recursive

deleteDir.php

<?php
function deleteDir($source)
{
    if(!is_dir($source))
        return false;

    $it = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($source),
            \RecursiveIteratorIterator::SELF_FIRST);

    $it->next();
    while($it->valid()){
        if(!$it->isDot())
            if($it->isFile())
                unlink($it->getRealPath());
            
        deleteDir($it->getRealPath());
        $it->next();
    }
    rmdir($source);
}