After transferring website - PHP Fatal error: Allowed memory size of 41943040 bytes exhausted (tried to allocate 32768 bytes)

Question

I am transferring website from one host to another. A very strange error occurred that I haven't seen before.

PHP Fatal error: Allowed memory size of 41943040 bytes exhausted (tried to allocate 32768 bytes)

I thought that this was a wp memory limit issue so I added this to my wp-config.php file

define( 'WP_MEMORY_LIMIT', '8096M' );
define( 'WP_MAX_MEMORY_LIMIT', '8096M' );

But the website keeps returning error 500, and this error in my error log.

Anyone any ideas?

Answer 1

In Wordpress PHP file(s) : Try to add ini_set('memory_limit', '1024M'); on pages that causes the error (or in a PHP file included on all pages)

OR

In php.ini : Search the php.ini file read by your PHP server and try to increase the memory_limit parameter (never set this key at -1 because it can freeze the server if you (really) have a problem in your code).