CRONTAB Permission Denied Deleting Files

[dotcomtim]

I am using crontab to execute a PHP script to delete files and the directory after the files have been deleted. I keep getting permission denied when using the unlink command on the files.

Here is the PHP Script I am running.

function RemoveDirectory($dirname) {
    if (!file_exists($dirname)) {
        return false;
    }
    if (is_file($dirname) || is_link($dirname)) {
        return unlink($dirname);
    }
    $dir = dir($dirname);
    while (false !== $entry = $dir->read()) {
        if ($entry == '.' || $entry == '..') {
            continue;
        }
        RemoveDirectory($dirname . DIRECTORY_SEPARATOR . $entry);
    }
    $dir->close();
    return rmdir($dirname);
}

$dirName = 123;
if (is_dir('/home/xxx/public_html/library/'.$dirName)) {
	RemoveDirectory('/home/xxx/public_html/library/'.$dirName);
}

The files are JPG images upload using PHP. The file permissions are 0644 user and group are 99. The directory itself is 777 user and group is 99 as well.

How do I give access to crontab to run this script and delete the files and directory?

If I run the script myself directly with the CMS I am using - no problems. Which means there is a permissions issue somewhere that needs to be fixed.

Any help appreciated. Thanks.

[storminternet]

Please make sure that the script you are using to delete the files through crontab has executable permissions i.e. 755

[dotcomtim]

Tried that as well. The server is setup as DSO and I am wondering if this has something to do with it.

[quietFinn]

What is the command line you use to start the script in crontab?