Check director is writable recursively. to return true, all of directory contents must be writable
<?php
function is_writable_r($dir) {
if (is_dir($dir)) {
if(is_writable($dir)){
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (!is_writable_r($dir."/".$object)) return false;
else continue;
}
}
return true;
}else{
return false;
}
}else if(file_exists($dir)){
return (is_writable($dir));
}
}
?>