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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?

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28

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

  1. Set the fastcgi_param of PHP_VALUE to be the relevant setting in the nginx configuration: fastcgi_param PHP_VALUE "memory_limit = 128M";

  2. 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.

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  • In the second case how to do that specifically for a given application/domain. Commented Apr 17, 2013 at 12:49
  • Run that application against a different PHP FPM pool. Commented Apr 17, 2013 at 14:09
  • doesnt work in nginx this way nginx: [emerg] invalid number of arguments in "fastcgi_param" directive in ... Commented Dec 10, 2014 at 12:09
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    @growse, there is a missing semicolon at the end of fastcgi_param PHP_VALUE "memory_limit = 128M" else it gives an error. Thanks Commented Feb 17, 2017 at 18:32
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    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(). Commented Jan 3, 2020 at 21:41

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