Increasing the WordPress Memory Limit

To address memory limit issues, there are two paths:

Adjust yourself
Contact your hosting company

Do It Yourself

To adjust on your own, here are some methods to try. Be aware that this section requires advanced knowledge; it is not basic.

Edit your wp-config.php file

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Add this to the top, before the line that says, “Happy Blogging”:

define('WP_MEMORY_LIMIT', '256M');

WordPress memory can be different from the server – you need to set this regardless of server memory settings

http://codex.wordpress.org/Editing_wp-config.php#Increasing_memory_allocated_to_PHP

Edit your PHP.ini file

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If you have access to your PHP.ini file, change the line in PHP.ini If your line shows 64M try 256M:

memory_limit = 256M ; Maximum amount of memory a script may consume (64MB)

Edit your .htaccess file

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If you don’t have access to PHP.ini try adding this to an .htaccess file:

php_value memory_limit 256M

Contact Your Host

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Should you not feel comfortable in trying the above methods, or the above did not work for you, you need to talk to your hosting about having them increase your memory limit.