How to set php in the. htaccess file

How. set php in the htaccess file. set the PHP runtime environment in the htaccess file. for example, the magic_quotes_gpc configuration statement is as follows: php_flagmagic_quotes_gpcoff, but the server returns an error. my php runs in CGI mode, I need to set in the PHP configuration file. set php in the htaccess file
For example, I want to set the PHP runtime environment in the. htaccess file, such as magic_quotes_gpc.

The configuration statement is as follows:
Php_flag magic_quotes_gpc off
But the server returns an error.

My php runs in CGI mode. Do I need to set anything in the PHP configuration file?


------ Solution --------------------
This is introduced in the apache manual, which is the best and most comprehensive.