php-_server-php_self - Why does nginx $_SERVER['PHP_SELF'] get duplicate paths?

Question

As shown in the figure, why does nginx $_SERVER['PHP_SELF'] get duplicate paths?

The configuration file is as follows
nginx.conf

php.conf configuration file:

fastcgi.conf configuration file:

Answer 1

It should be php configuration.

fastcgi-param script一项，调用的结果是$document_root$fast_cgi_name in php.conf, this caused duplicates.