How to change PHP Memory limit from 64M to 256M ?

In your WordPress installation, you can do it from the wp-config.php file. Insert this code in that file:

/** Memory Limit */
define('WP_MEMORY_LIMIT', '256M');
define( 'WP_MAX_MEMORY_LIMIT', '256M' );

Add it before this line:

/* That's all, stop editing! Happy blogging. */

• This reply was modified 1 year, 9 months ago by Faisal Ahammad.

Thanks a lot Faisal,

I already have added those lines in the /var/www/wordpress/wp-config.php

They are still inside /var/www/wordpress/wp-config.php and when I open it it says “This file is meant to be read-only”…

So I zm wondering if with PHP 8.0 or 7.4 there is something else to do ???

Thanks again,

Stephane

Hi Stephane,
You can modify the php.ini file to increase the memory limit. Simply add the following code and then restart the Apache server (if you’re using it). Doing so will help ensure that your server has enough memory to handle the load.

php.ini code:
memory_limit = 256M

Server restart command:
sudo service apache2 restart

After completing these steps, you should have successfully increased the WP Memory limit from the php.ini file.

Hi Faisal,

Thanks for your answer, I already had this memory_limit set to 256M.

My WordPress is working under Unohost distribution, so there are 7.4 and 8.0 PHP version, but no Apapche server.

But I found the solution, the file to change is wordpress.conf and then restart php:

sudo nano /etc/php/8.0/fpm/pool.d/wordpress.conf
memory_limit = 256M
sudo systemctl restart php8.0-fpm

And now it works, in the health / Server information, the PHP memory limit is now set to 256M.

Thanks for the help anyway !