[wp-hackers] WordPress 3.1 Requirements

Peter Westwood peter.westwood at ftwr.co.uk
Thu Dec 16 15:46:03 UTC 2010

On 16 Dec 2010, at 15:44, Eric Mann wrote:

> PHP 4.3+ is a requirement for WordPress to operate, but some features will
> still be incompatible with those versions of PHP.  I can confirm that
> automatic updates fail for PHP < 5 on at least GoDaddy, 1and1 and
> MediaTemple.  However, WordPress still works just fine and you can still
> perform a manual (FTP) update.
> At the same time, it is possible in almost all cases to upgrade your hosting
> from PHP4 to PHP5.
>   - Godaddy:
>   http://www.ardamis.com/2009/07/25/upgrading-godaddy-hosting-to-php-5-x-from-php-4-3-11/
>   - 1and1: http://faq.1and1.com/scripting_languages_supported/php/5.html
>   - MediaTemple:
>   http://kb.mediatemple.net/questions/244/How+can+I+specify+the+version+of+php+for+web+applications+on+the+(gs)+Grid-Service%3F
> PHP4 compatibility has been maintained for so long with WordPress for people
> who aren't able to upgrade their PHP installation, either because they don't
> know how or because their hosts don't allow it.  With just about any
> mainstream web host, though, it's possible to upgrade almost instantaneously
> by selecting a toggle somewhere, changing your .htaccess file, or adding a
> line to php.ini.  In any case, the upgrade to PHP5 takes less time than the
> automatic update does in WordPress - if you can, do it.
> But the actual system requirements for a new installation of WordPress are
> the same: PHP 4.3 and MySQL 4.1.2.

If automatic upgrades don't work on PHP 4.3 that sounds like a bug to me.

I take it you reported this in trac?

Peter Westwood
http://blog.ftwr.co.uk | http://westi.wordpress.com
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