Title: MySQL/PHP Upgrade Problems
Last modified: August 18, 2016

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# MySQL/PHP Upgrade Problems

 *  Resolved [Chip Bennett](https://wordpress.org/support/users/chipbennett/)
 * (@chipbennett)
 * [19 years, 4 months ago](https://wordpress.org/support/topic/mysqlphp-upgrade-problems/)
 * My hosting service updated my domain to a server running newer versions of PHP
   and MySQL (at my request, to support WP 2.1 requirements).
 * The migration was completed, but now WordPress is generating 500/internal server
   errors.
 * I have a ticket in with my host’s tech support, but I was wondering if anyone
   here had run into anything similar?
 * The server error log keeps repeating:
 * > [Thu Jan 25 18:49:58 2007] [error] [client 74.6.68.157] PHP Fatal error: Allowed
   > memory size of 8388608 bytes exhausted (tried to allocate 87 bytes) in /var/
   > www/html/wordpress/wp-content/plugins/wp-db-backup.php on line 766
   >  [Thu Jan
   > 25 18:49:58 2007] [error] [client 74.6.68.157] Allowed memory size of 8388608
   > bytes exhausted (tried to allocate 10 bytes) [Thu Jan 25 18:49:58 2007] [error][
   > client 74.6.68.157] Premature end of script headers: php-script
 * So far, my host’s tech support has suggested changing the wp-config.php file 
   so that DB_HOST is “127.0.0.1” instead of “localhost”.
 * Is this a server problem, or is this a wordpress problem?
 * I have the database backed up, and can get into it via MyPhpAdmin (can back it
   up again, do anything with it on the server side), but wordpress can’t seem to
   access it.
 * Thoughts?

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Chris_K](https://wordpress.org/support/users/handysolo/)
 * (@handysolo)
 * [19 years, 4 months ago](https://wordpress.org/support/topic/mysqlphp-upgrade-problems/#post-511031)
 * Based on the errors…
 * Ask the host to configure PHP to give more than the default 8MB for max memory.
 * Or deactivate some plugins to fit in 8MB.
 *  Thread Starter [Chip Bennett](https://wordpress.org/support/users/chipbennett/)
 * (@chipbennett)
 * [19 years, 4 months ago](https://wordpress.org/support/topic/mysqlphp-upgrade-problems/#post-511056)
 * Assuming that’s the problem, how do I remedy it?
 * I can’t get to my plugin page, because every attempt to bring up a wordpress-
   related page (main index, admin dashboard, etc.) results in either a blank page(
   index) or the 500 intternal server error page. Thus, I can’t get *to* my plugins
   page to disable anything.
 * Everything’s backed up. Should I just blow everything away, and load a fresh 
   copy of WP 2.1?
 * (I’m also putting in the request now, to have the PHP memory allocation increased.)
 * Thanks!
 *  Thread Starter [Chip Bennett](https://wordpress.org/support/users/chipbennett/)
 * (@chipbennett)
 * [19 years, 4 months ago](https://wordpress.org/support/topic/mysqlphp-upgrade-problems/#post-511058)
 * (I should have thought of this originally, but I’ve not had any coffee yet this
   morning.)
 * I moved several plugins out of the “plugins” directory and into a temp directory,
   and everything seems to work as expected. Looks like you were exactly right. 
   Thanks!
 * Note to self: deactivate plugins that you try, and then decide not to use!

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘MySQL/PHP Upgrade Problems’ is closed to new replies.

## Tags

 * [MySQL](https://wordpress.org/support/topic-tag/mysql/)
 * [php](https://wordpress.org/support/topic-tag/php/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [Chip Bennett](https://wordpress.org/support/users/chipbennett/)
 * Last activity: [19 years, 4 months ago](https://wordpress.org/support/topic/mysqlphp-upgrade-problems/#post-511058)
 * Status: resolved

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