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How can I see the error messages when the site I am working on gets a white screen?

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hello sokratis, this is an interesting question and I see several answers, do you know what answers are suitable for this case?. Remember assign a feedback (with comments or accpeting an answer) for to the community know suitable answers. – moon.watcher Aug 25 '11 at 16:43

3 Answers

up vote 10 down vote accepted

Put this at the bottom of settings.php:

error_reporting(-1);  // Have PHP complain about absolutely everything 
$conf['error_level'] = 2;  // Show all messages on your screen, 2 = ERROR_REPORTING_DISPLAY_ALL.
ini_set('display_errors', TRUE);  // These lines just give you content on WSOD pages.
ini_set('display_startup_errors', TRUE);
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This is great for development sites though I prefer /var/log/apache2/error.log for live sites. This works though. :) – Citricguy Feb 3 '12 at 5:25
up vote 5 down vote

The White Screen of Death (Completely Blank Page) resource on drupal.org will step you through the steps to see the error message as well as common problems that cause them.

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up vote 5 down vote

Have a look at Apache error log, in Ubuntu it's located in /var/log/apache2/error.log so you can do:

tail -f /var/log/apache2/error.log

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sudo tail -f /var/log/apache2/error.log – Citricguy Feb 3 '12 at 5:23

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