I have a server where php is running as an apache module.

Every user on the server is restricted to his own directory with open_basedir.

I have disabled the following functions:

disable_functions = exec,passthru,shell_exec,system,proc_open,popen,curl_multi_exec,parse_ini_file,show_source

Now I'd like to forbid custom php config settings, such as:






How would you go about it?


1 Answer 1


You can use the php_admin_value and php_admin_flag directives to hard code the values into your apache config, this will prevent both .htaccess and ini_set from overriding the values you set.

You can read about these directives in the PHP documentation

  • Ah! Thanks SubOracle, I read that page but missed the "Any directive type set with php_admin_value can not be overridden by .htaccess or ini_set()". Do you reckon this will still be true even if there is "AllowOverride all" in my httpd.conf? Well I'll make a test myself asap and report back.
    – wlf
    Dec 31, 2012 at 9:57
  • php_admin_value memory_limit 128M worked even with AllowOverride All
    – wlf
    Dec 31, 2012 at 10:20

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