How to Reduce PHP 7+ and WordPress Memory Usage
If you are using shared hosting, VPS, dedicated or a cloud server, you will always have a limitation on the memory available.
Fatal error: Allowed memory size of 53556432 bytes exhausted (tried to allocate 9851348617 bytes) in /home/xxx/www/website/wp-includes/plugin.php on line xxx
- You need to increase PHP memory limit for wordpress by adding following code in wp-config.php
define( 'WP_MEMORY_LIMIT', '256M' );
- If step 1 doesn’t work: disable opcache
PHP newer version has default value as enabled and you can disable it by updating php.ini. Look for
;if its commented and set it to
opcache.enable=0. Restart php fpm and apache process.