Increase phpmyadmin upload limit

if you installed phpmyadmin via centmin mod phpmyadmin.sh addon, it has it's own specific php-fpm pool user and custom settings at /usr/local/nginx/conf/phpfpmd/phpfpm_myadmin.conf defined

Code (Text):

php_admin_value[memory_limit] = ${MEMLIMIT}M
php_admin_value[max_execution_time] = 3000
php_admin_value[post_max_size] = 768M
php_admin_value[upload_max_filesize] = 768M

Where ${MEMLIMIT} would be dynamically calculated based on memory free/available at time of phpmyadmin.sh install run.
Edit /usr/local/nginx/conf/phpfpmd/phpfpm_myadmin.conf and restart both nginx and php-fpm

If import has errors due to size read https://centminmod.com/addon_phpmyadmin.html#importerrors

If it's export size, read https://centminmod.com/addon_phpmyadmin.html#timeouts

 

where you looking for reported 768MB value ? you'd need to set a phpinfo file in phpmyadmin install directory to see it's own value. If phpinfo file is outside of phpmyadmin install directory, then it reports the usual and separate php-fpm default settings.

tested it myself and works for phpmyadmin install directory's loaded phpinfo file reported 9999MB values