Answers for "increaset the memory size in php code"

increase PHP Memory

define( 'WP_MEMORY_LIMIT', '64M' );

Increase the PHP memory limit

/*
To increase the PHP memory limit setting, edit your PHP.ini file found under /usr/local/etc/php/7.4/.
Increase the default value (example: Maximum amount of memory a script may consume = 128MB) of the PHP memory limit line in php.ini.
*/

memory_limit = 256M