I am moving my expression engine site and database to a new server. Everything seems to be directed correctly but when I access admin.php I get a blank page. Any thoughts?
If you are seeing a white screen there's an error happening and you need to display that error to be able to know how to proceed. (See the EE user guide about Blank Pages.)
To show that error, edit your folder's index.php file and replace
$debug = 0 with
$debug = 1. Revisit your site and you should see the error.
If you see something like this:
A Database Error Occurred Unable to connect to your database server using the provided settings.
Then follow this answer on another question.
If that doesn't help, try the solutions offered in this answer.
I had this problem recently after the host upgraded to PHP 5.3.27. The front of the site worked fine but when I tried to log in to the CP (after logging in) I got the white screen of death. Are you able to log in at all?
My problem was that the new version of PHP had been compiled, quite correcty, with an oAuth plugin. This caused a problem with an old Twitter add-on that used an old oAuth PHP library.
The solution was as simple as commenting out one method in the add-on (the method didn't even do anything) and it was all fixed. Took 8 hours to work that out.
So, do you have anything that might be using an old oAuth library?
I should add that no matter what I did I could not get ANY debug info to display.
My experience with blank home page.
Sometimes when you are migrating your page you can get blank home page.
I found the problem with the home page not displaying from the base URL. it was because there was a default.html file in the root directory. The old hosting server must had set the order to look for start files to PHP extension as the first default so it ignored the default.html file in the root directory and loaded index.php.
The new hosting server must have the default extension it looks for as an .HTM or .HTML file and was loading the blank default.html file first. Once I deleted the blank default.html file the hosting server started loading the index.php file and displayed the WordPress home page.