<?
function s($c) {
	echo "\$ $c\n";
	system($c);
	echo "\n";
}

function wr($f) {
	if(is_writable($f)) {
		echo "<b>$f</b> is writable.\n";
	} else {
		echo "<b>$f</b> is <font color='red'>NOT</font> writable.\n";
	}

	if(is_readable($f)) {
		echo "<b>$f</b> is readable.\n";
	} else {
		echo "<b>$f</b> is <font color='red'>NOT</font> readable.\n";
	}
}

$dir = "attachments";

s("whoami");
s("pwd");
s("ls -ld $dir");

wr($dir);

$dir2 = "$dir/test";
mkdir("$dir2");

wr($dir2);

//$dir3 = `pwd`;
$dir3 = $DOCUMENT_ROOT . "/phpbt/" . $dir;

wr($dir3);

?>

Output is:
------------------------------
$ whoami
nobody

$ pwd
/usr/local/httpd/web/phpbt

$ ls -ld attachments
drwxrwxrwx    4 nobody   nogroup      4096 Jan  9 18:50 attachments

attachments is NOT writable.
attachments is NOT readable.
attachments/test is NOT writable.
attachments/test is NOT readable.
/usr/local/httpd/web/phpbt/attachments is writable.
/usr/local/httpd/web/phpbt/attachments is readable.
------------------------------

First of all, update to PHP 4.3.0. Then if this still
misbehaves, try adding 'echo getcwd();' in your script to see what PHP thinks the current working directory is.

No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.

Yes, in PHP 4.3.0 the bug is fixed.
Thank you!
---------------------------------------------
<?
header("Content-type: text/plain");

function s($c) {
        echo "\$ $c\n";
        system($c);
        echo "\n";
}

function wr($f) {
        if(is_writable($f)) {
                echo "$f is writable.\n";
        } else {
                echo "$f is NOT writable.\n";
        }
        if(is_readable($f)) {
                echo "$f is readable.\n";
        } else {
                echo "$f is NOT readable.\n";
        }
}

$dir = "attachments";

s("whoami");
s("pwd");
s("ls -ld $dir");


echo "PHP version = ".phpversion()."\n";
echo "getcwd() = ".getcwd()."\n";

wr($dir);
$dir2 = "$dir/test";
mkdir("$dir2");
wr($dir2);
$dir3 = $DOCUMENT_ROOT . "/phpbt/" . $dir;
wr($dir3);
?>
---------------------------------------------
$ whoami
nobody

$ pwd
/usr/local/httpd/web/phpbt

$ ls -ld attachments
drwxrwxrwx    4 nobody   nogroup      4096 Feb  8 03:43 attachments

PHP version = 4.3.0
getcwd() = /usr/local/httpd/web/phpbt
attachments is writable.
attachments is readable.
attachments/test is writable.
attachments/test is readable.
/usr/local/httpd/web/phpbt/attachments is writable.
/usr/local/httpd/web/phpbt/attachments is readable.
---------------------------------------------

User reports the problem is fixed in release 4.3.0.