I've spent hours reading through all the threads I could find here on the blank white page from hell problem, and I've seen a few people say this is very common, inferring that a known fix is described somewhere. But I can't find anything here that unravels this mystery!
I wrote a new post today and created a new category at the same time, selecting that category and an existing one for the new post. When I hit the publish button, I got the white screen from hell. Nothing on my WP site will respond now. I can still access other files on my site, but WP is broken.
I tried adding the following line in my wp-config.php file as was suggested in one thread:
But it didn't change anything.
I tried deleting all my plugins by FTP, but that didn't change anything, so I copied the files back up to the server.
I've checked my WP database through PhpAdmin, and my new post is in the database, as is the new category.
Something like this happened once before -- I was simply writing a comment and when I submitted it, my site went blank for a day. Then it just reappeared. When that happened, another WP blog I had in the same domain wouldn't work either. But they both came back the next day. That makes me think that something about WP messed up my host's PHP functioning or something, because why would it affect a separate installation with its own set of directories and all?
I actually have three separate WP installations -- two in one domain and one in a virtual domain that is really a subdomain off the first. And now two of the blogs aren't working while one is.
Can someone please shed some light on this? If there is some wisdom to be found in stuff already written here, I haven't found it! Since this seems to be common, can't we make some kind of sticky post about it to help others find the solution?