Question

I want do some function mkdir folder for every 3 number combination. for example, 502341 will mkdir a new forder 502/341, 10023049132 will mkdir a new forder 10/023/049/132 I use number_format and explode, my problem is how to check how many unit were explode and wright some thing like

if(!is_dir(dirname(__FILE__) . '/'.$bbb[0])){
    mkdir(dirname(__FILE__) . '/'.$bbb[0],0777);
}

$aaa = '502341';//10023049132
$bbb = explode(',',number_format($aaa));
echo $bbb[0];
if(!is_dir(dirname(__FILE__) . '/'.$bbb[0])){
    mkdir(dirname(__FILE__) . '/'.$bbb[0],0777);
}
if(!is_dir(dirname(__FILE__) . '/'.$bbb[0]. '/'.$bbb[1])){
    mkdir(dirname(__FILE__) . '/'.$bbb[0]. '/'.$bbb[1],0777);
}
...//how to check more $bbb[2], $bbb[3] or even more?

Answer 1

All you need is chunk_split and mkdir with recursive option

$path = __DIR__;

if (! is_writable($path))
    trigger_error("$path is not writeable");

$str = "502341";
$arr = chunk_split($str, 3, "/");
mkdir($path . DIRECTORY_SEPARATOR . $arr, 0777, true);
                                                  ^--------- Recrusive