Description:
------------
Latest go-pear:
 $Id: go-pear,v 1.81 2006/03/11 14:15:20 pajoye Exp $
fails on php5 with open_basedir restriction.
Function tmp_dir() about line 1156 has check code:

        $_temp = my_env('TMPDIR');
        if (!$_temp) {
            if (is_writable('/tmp')) {
                $_temp = '/tmp';
            }
        }
which fails cause is_writable('/tmp') return true (!!) even if php cannot write anything there because of restrictions, so then in line 423:

$ptmp = tempnam($foo, 'gope');

$ptmp becomes ampty - script is downloading packages into current dir which makes then conflicts and errors.

I suggest to change this:
        if (!$_temp) {
            if (is_writable('/tmp')) {
                $_temp = '/tmp';
            }
        }

to something like that:
        if (!$_temp) {
		$test = '/tmp/'.uniqid();
            if (@mkdir($test)) {
		    @rmdir($test);
                $_temp = '/tmp';
            }
        }
which forces to create something to check if its possible.

------------------------

Second small bug is that after i fixed that code above and installation finished with success i got link:
"Start Web Frontend of the PEAR Installer >>"
which points to pear/pear/index.php dir instead of pear/index.php dir (where "pear" was my dir i choosed to put go-pear.php there and run with defaults).