If you want to increase the WordPress memory limit, you can use one of the following methods:
1. Increasing memory limit through “wp-config.php”:
Please go to the root directory of WordPress and open “wp-config.php”. Then find the line that has “WP_DEBUG” and add the following code after it:
define(‘WP_MEMORY_LIMIT’, ‘128M’);
2. Increasing memory limit through “PHP.ini”:
Please go to the root directory of WordPress installation ( where the wp-config.php file is located ) and look for “php.ini” file ( if it’s not there, create a new one ) and add the following code:
memory_limit = 128M
3. Increasing memory limit through the .htaccess file.
Some servers accept “.htaccess” file modification. Please go to the root directory of WordPress installation ( where the wp-config.php file is located ). Usually, you will find that file, but if you couldn’t, please read the following StackOverflow question.
You can add following code to .htaccess file:
php_value memory_limit 128M
4. If none of those methods worked, you should contact your host administrator to increase the memory limit.