Re: Why won't my web site open?
That's a problem with a version 5.2 (or earlier) Zend-encoded (Zend Guard/Zend Optimizer) script that is no longer compatible under version 5.3. Zend has stated that they have no plans to fix compatibility issues going forward. The "fix" is to use a version of the script that has been encoded for 5.3 (if it's available).
“Beware of bugs in the above code; I have only proved it correct, not tried it.” --Donald Knuth
"It was as if its architects were given a perfectly good hammer and gleefully replied, 'neat! With this hammer, we can build a tool that can pound in nails.'" -- Alex Papadimoulis (on TheDailyWTF.com)