MAMP Drupal 6 White Page Problem

I've been trying to install an existing drupal 6 app into a MAMP environment (mac), but i get a white page as a result of the home page. The thing is that i can access to the rest of pages if i put the absolute url, but it doesn't show anything at root ( http://virtualhostname/ )! Maybe it's a question of the .htaccess and rewri开发者_JAVA百科te issues. I already setted up the memory_limit of php.ini of mamp and drupal to 256M so i don't think this is the problem either. Maybe is the db, cause some parts of the pages doesn't show properly, maybe at the import something went wrong, i don't know.

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Its probably a php problem. Check your apache logs for the error. If you are running linux, just go to the terminal and do 'tail -f /var/log/apache2/error.log' and referesh the url you are getting the white page.

This will let you know the reason for the white page and then you can resolve it. You can paste the error over here, so that people can look and help you debugging it.

Hope this helps!!

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Put these lines at the top of your index.php file, it will display the error out to the screen instead of just the white page.

error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);

UPDATE

Sounds like the 'whitespace at the end of template files' problem, details and fixes are here: http://drupal.org/node/1424

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This is usually a php memory issue, but I have also seen similar situations where having an OP code cache like APC gets messed up and the usual solution is to restart apache to solve it.

Make sure you clear cache and run update.php