Bash – sed php.ini memory_limit

bashphp.inised

The following works great:

phpmemory_limit=256M #or what ever you want it set to
sed -i 's/memory_limit = 16M/memory_limit = '${phpmemory_limit}'/' /etc/php5/apache2/php.ini

If the memory_limit is set to 16M, but I've found that in some distributions it doesn't default to 16M, but instead will default to 32M. So my question is how to I have SED account for that and replace whatever the number is to ${phpmemory_limit}?

Best Answer

you can use regexp - for instance:

phpmemory_limit=256M #or what ever you want it set to
sed -i 's/memory_limit = .*/memory_limit = '${phpmemory_limit}'/' /etc/php5/apache2/php.ini

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There are two options i know of to accomplish at least parts of your goal.

First php safe_mode, which might give your Devs a lot of additional work.

Suhosin www.hardened-php.net

When installed you can edit /etc/php5/conf.d/suhosin.ini and set:

suhosin.memory_limit = 512M

Qoute from Manual 1:

suhosin.memory_limit

Type: Integer
Default: 0

As long scripts are not running within safe_mode they are free to change the memory_limit to whatever value they want. Suhosin changes this fact and disallows setting the memory_limit to a value greater than the one the script started with, when this option is left at 0. A value greater than 0 means that Suhosin will disallows scripts setting the memory_limit to a value above this configured hard limit. This is for example usefull if you want to run the script normaly with a limit of 16M but image processing scripts may raise it to 20M.

Stackoverflow question for reference

Best Answer

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