MySQL/PHP/Horde "Failed to write session data"
 

I'm trying to setup a test box with IMP on Horde on MySQL, but am having problems running Horde and/or PHP with MySQL (nevermind IMP). When I bring up http://[servername]/horde, the PHP page loads (so it's obviously not an Apache issue), but it's looking like the connection to the database is hosed(?). Here's the error that shows directly below the login fields...

Warning: Unknown(): open(/var/www/tmp/sess_0bdc951ade0ceeed84c85f145ed55ad5, O_RDWR) failed: No such file or directory (2) in Unknown on line 0

Warning: Unknown(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/var/www/tmp) in Unknown on line 0


Yes, I'm using /var/www/tmp as my temp directory intentionally, and I've given the folder 777 permissions, so access shouldn't be a problem (I'll worry about locking it down later). I've changed every reference I could find in all the config files to have /var/www/tmp as the temp dir, but it's still giving me grief. Any ideas?


Here are my versions...
MySQL 4.0.20
PHP 4.3.8
Horde 2.2.5