Wp 2.2 Upgrade: Illegal Offset Errors

  • As with all WP updates, i install first on my local Powerbook against my local wp-content with my own designed themes and see if things look good. This I just did with the WP2.2 branch and everything looked good.

    I then proceeded to install the new version at my hosting provider. The result looked like this.

    My first thought was that I did something wrong. I proceeded to roll back to backup and then went through the upgrade process again, this time more slowly and more attentively.

    Same result.

    Figuring that 3rd time is a charm i started with a blank directory, un-archived latest.tar.gz, and then dropped my other directories in….no dice.

    So I have two data points, one that was successful, the other that failed multiple times.

    The error from the bad install is in my theme sidebar code:


    Warning: Illegal offset type in /home/steven/public_html/badinst/wp-includes/cache.php on line 125

    Warning: Illegal offset type in /home/steven/public_html/badinst/wp-includes/cache.php on line 131

    Warning: Illegal offset type in /home/steven/public_html/badinst/wp-includes/cache.php on line 139

    Warning: Illegal offset type in /home/steven/public_html/badinst/wp-includes/cache.php on line 144

    Warning: Illegal offset type in /home/steven/public_html/badinst/wp-includes/cache.php on line 281

    Warning: Illegal offset type in unset in /home/steven/public_html/badinst/wp-includes/cache.php on line 282

    Warning: Illegal offset type in /home/steven/public_html/badinst/wp-includes/cache.php on line 125

    Warning: Illegal offset type in /home/steven/public_html/badinst/wp-includes/cache.php on line 131

    .....

    So I’m definitely thinking that something in cache.php + my host’s web server is causing a problem here.

    They’re running Apache 1.3.3

    and PHP is PHP 4.3.10 (cli) (built: Jan 12 2005 11:54:18)

    I thought that these threads:

    Might be the way to return back to the land of the living, but neither of those threads appear to have reached a conclusion.

    So, I thought I’d sum up my research here and see if anyone can help. So, uh, any help?

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  • My sites also blew with all the illegal offset in cache.php error messages after the upgrade.

    In my case upgrading Zend Optimizer (to v3.2.8) solved the problem immediately. My PHP is v4.3.11.

    Good luck.

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