php ini settings if done from inside php code and other from php.ini file , which one will override the other?

Question

If some configuration parameters of php are set from both the modes i.e from inside the php code and from an php.ini file . I wanna know which one will be overriding the other to take effect. and also please tell me if the php.ini configuration is applied in the sub folders or not.

Answer 1

If you mean ini_set then ini_set will take precedence over the configuration file.

See ini_set.

Note that some values can't be set in this way due to ini_set restrictions or server configuration. ini_set will return FALSE if it did not set the value (or, presumably, if the value was previously false).