Documentation clarification about empty value $cfg['MemoryLimit']

[herndlm]

Hi, I think there should be more infos about the impacts of "empty" values of the "MemoryLimit" configuration setting in the official documentation in http://docs.phpmyadmin.net/en/latest/config.html#cfg_MemoryLimit

When doing exports and imports only if the config value is not empty the "ini_set" call will be made as in

phpmyadmin/export.php

Line 301 in dbb4dce

if (! empty($cfg['MemoryLimit'])) {

and

phpmyadmin/import.php

Line 291 in dbb4dce

if (! empty($cfg['MemoryLimit'])) {

which is exactly what I needed because setting the memory_limit is forbidden by default when using Suhosin¹ and results in spamming the syslog with messages like "ALERT - script tried to increase memory_limit to 268435456 bytes which is above the allowed value".

So maybe something like "If set to zero, the php.ini default value is used." should be added there.

[1] https://suhosin.org/stories/configuration.html#suhosin-memory-limit