–Enable magic quotes by default. This option only sets the default, it may be enabled or disabled with the
magic_quotes_runtime directive in the configuration file later. See also the magic_quotes_gpc and the
magic_quotes_sybase directives.
–enable-debugger
-enable-debugger
Enables the internal PHP debugger support. This feature is still in an experimental state. See also the
Debugger Configuration directives in the configuration file.
–enable-discard-path
-enable-discard-path
If this is enabled, the PHP CGI binary can safely be placed outside of the web tree and people will not be
able to circumvent .htaccess security. Read the section in the security chapter about this option.
–enable-bcmath
-enable-bcmath
Enables bc style arbitrary precision math functions. See also the bcmath.scale option in the
configuration file.
–enable-force-cgi-redirect
-enable-force-cgi-redirect
Enable the security check for internal server redirects. You should use this if you are running the CGI
version with Apache.
When using PHP as a CGI binary, PHP by default always first checks that it is used by redirection (for
example under Apache, by using Action directives). This makes sure that the PHP binary cannot be used
to bypass standard web server authentication procedures by calling it directly, like
http://my.host/cgi-bin/php/secret/doc.html. This example accesses