[TYPO3-core] RFC #12371: Warning issued on first load of install tool

[Ernesto Baschny [cron IT]]

This is an SVN patch request.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=12371

Branches:
trunk, TYPO3_4-2 and TYPO3_4-1

Problem:
Warning issued on first load of install tool:
Warning: Invalid argument supplied for foreach() in
/path/to/TYPO3_4-2-10/typo3/sysext/install/mod/class.tx_install_session.php
on line 349

Happens only when open_basedir restriction is set.

Solution:
Due to a PHP misbehaviour, glob() returns a "false" instead of an empty
array when there are no files and open_basedir is set (see [1]). So we
simply check the return value before passing that to the foreach().

Patch for 4.1 is just different because of the non-present "public"
visibility.

Cheers,
Ernesto

[1] http://bugs.php.net/bug.php?id=47358
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