Firstly, I'm replacing all use of old-style global variables like
$HTTY_REFERER with their new-style equivalent $_SERVER["HTTP_REFERER"]
Also using $_POST instead $HTTP_POST_VARS etc
Secondly, if gdversion == 0 (ie GD is not installed) then:
- users are not even allowed to upload new images
- graphs now just print a message instead of failing.
this allows Moodle to still be used even if GD is not present
Should be fixed now. As a bonus, I've removed all the uses of
HTTP_POST_VARS from all scripts.
All forms should use the new data_submitted() function to collect
form data (it does the match_referer thing internally now).
Much nicer.
If true, then display of user pictures or filenames will use the
method of providing arguments as "slash" arguments - this is much
better for caching, proxies, search engines etc. Unfortunately
it doesn't seem to work on some PHP installations.
If false (the default), then a more compatible method is used
(ie usual way of passing parameters to scripts)
gmdate to format times, thus allowing it to take advantage of locale, if set,
to print dates in the appropriate language. Several userdate invocations
had to be changed, though, to use the different formatting specs.
