nginx + php-fpm: how to specify memory limit for an application

Question

With apache+php_mod it was as easy as putting:

php_value      memory_limit        128M

into application vhost.

How can I do something like this for nginx+php-fpm?

wxactly · Accepted Answer · 2020-08-06 05:46:25Z

27

You've got a couple of options. You can either:

Set the fastcgi_param of PHP_VALUE to be the relevant setting in the nginx configuration: fastcgi_param PHP_VALUE "memory_limit = 128M";
Set it via the php_value setting in the FPM pool configuration file. Something like php_value[memory_limit] = 128M. Use php_admin_value if you don't want the setting to be overridable via ini_set.

wxactly

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answered Apr 17, 2013 at 12:47

growse

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In the second case how to do that specifically for a given application/domain.
– clime
Apr 17, 2013 at 12:49
Run that application against a different PHP FPM pool.
– growse
Apr 17, 2013 at 14:09
doesnt work in nginx this way nginx: [emerg] invalid number of arguments in "fastcgi_param" directive in ...
– Ricardo Martins
Dec 10, 2014 at 12:09
3

@growse, there is a missing semicolon at the end of fastcgi_param PHP_VALUE "memory_limit = 128M" else it gives an error. Thanks
– Jaspal Singh
Feb 17, 2017 at 18:32
1

I had to use php_admin_value[memory_limit] instead of php_value[memory_limit]. The difference between both, according to the documentation, is that the first cannot be overridden by *.ini files or ini_set().
– Gwyneth Llewelyn
Jan 3, 2020 at 21:41

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