Jul/095
Wordpress 2.8 automatic upgrade fails
I’ve been trying to update my wordpress blogs from various versions like 2.5 and 2.7 to the newest 2.8 for a while now, but was never able to do it automatically.
Every time I pressed the “upgrade automatically” button, it told me it was downloading the latest file from Wordpress, but it never got any further than that. I logged in to my site using my FTP client and found a 0KB sized file called wordpress2.8.zip in the wp_content folder, so I thought I’d found the issue – maybe the script can’t actually download the file and save it to disk because of permissions. I chmodded the file and then the folder to allow write access, but no joy.
Of course, I could have just downloaded the latest install from wordpress and done a manual upgrade, but there’s about 8 million files in the zip file and I didn’t want to have to upload that to 5 different sites! ;)
After a bit of research, it turns out that the problem is that the auto-upgrade script requires PHP5 to run, and as my sites are hosted on 1and1 servers which default to php4, the script was failing!
So if you’re having the same issue, all you need to do is make sure your wordpress is running on PHP5 instead of 4! If you’re on a shared server and you can’t change the server’s config, you can still tell apache to run your scripts as PHP5 rather than 4 by adding the following line to your .htaccess:
AddType x-mapp-php5 .phpAll that does is tells apache to to parse all .php files with the PHP5 parser rather than whatever the server’s default is! So just throw that in the .htaccess you find in the root of your site – put it just after the “# END WordPress” line – save it, upload it and try doing the upgrade again – it worked first time for me! :)
If you’re still having trouble after that, or you’ve got a different solution, please post a comment here and let others know!
Feb/090
Mod rewrite URL with 2 question marks?
A colleague asked me for some help with a few RewriteRules in his .htaccess today. One of the links he was trying to rewrite was unusual in the fact that is had 2 question marks “?” in it.
Let’s say the url looked like:
www.site.com/2009/1/is-this-a-legit-url?-i-don't-know?
and you wanted to rewrite that to:
www.site.com/2009/1/is-this-a-legit-url-i-dont-know/
You might think the rewrite would be simple, like so:
RewriteRule ^2009/1/is-this-a-legit-url\?-don%27t-know\?/?$ /2009/1/is-this-a-legit-url-i-dont-know/? [R=301,NC,L]
If you run that though, apache will throw a wobbly and tell you that “The requested URL /2009/1/is-this-a-legit-url was not found on this server.”
The reason for this is the server thinks everything after the first “?” is the querystring, so in this case, the apache is looking for a file/folder called “/2009/1/is-this-a-legit-url” and it will pass the querystring through as “-i-don’t-know?”
Of course, the simple solution would be to just match up to the first question mark in the rule, but that might not always be appropriate – e.g. if the string began with a question mark for whatever reason!
We came up with a cunning workaround for this by matching both the request url and the querystring like so:
RewriteCond %{QUERY_STRING} ^-i-don%27t-know\?/?$ [NC] RewriteRule ^2009/1/is-this-a-legit-url$ /2009/1/is-this-a-legit-url-i-dont-know/? [R=301,NC,L]
Now, if a request like the original one above comes in, the query string will match the rewrite condition, and the requested URL will match the rewrite rule! :)
Note the extra question mark at the end of the rewritten rule “/is-this-a-legit-url-i-dont-know/? [R=301,NC,L]” – you need that in there to stop the server trying to push the original query string through.
Without it, your URL will be redirected to:
www.site.com/2009/1/is-this-a-legit-url-i-dont-know/?-i-don%2527t-know%3f
Unfortunately, using this method does mean that if you have any variable in the query string that you want to push through, you won’t be able to… Chances are though, that if you have 2 question marks, something’s gone wrong anyway, so this fix is better than nothing! ;)

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