Hello there dear nginx people,
I am a beginner in nginx and also to mailing lists. 
Once read the
docs I can’t say I am sure I remember all the important parts so please
excuse me if I am asking something silly. I’m having trouble with using
the value part fastcgi_param of ngx_http_fastcgi. I am using nginx
1.2.5.
I am trying to include four spaces between two variables. Here is an
example in markdown. This is cross-posted at
http://stackoverflow.com/questions/21968255
The fastcgi_param
docs
reads
A value can contain text, variables, and their combination.
Does not link or specify explicitly what the text format is or what the
combination format is.
I am trying to add four spaces between two variables in order to
understand the ‘expression format’ used in fastcgi_param. I get
errors. Here are relevant parts from nginx.conf with line numbers:
try 1 with apostrophe '
78: fastcgi_param SCRIPT_FILENAME $document_root'
'$fastcgi_script_name;
82: # deny access to .htaccess files, if Apache’s document root
produces
nginx: [emerg] unexpected "s" in <nginx.conf>:82
try 2 (bare)
Another try
78: fastcgi_param SCRIPT_FILENAME $document_root
$fastcgi_script_name;
produces
nginx: [emerg] invalid parameter "$fastcgi_script_name" in
<nginx.conf>:78
try 3 with double quotse "
If I use " like this:
78: fastcgi_param SCRIPT_FILENAME $document_root"
"$fastcgi_script_name;
the error I get is:
nginx: [emerg] unexpected end of file, expecting ";" or "}" in
<nginx.conf>:128
If I simply do
78: fastcgi_param SCRIPT_FILENAME
$document_root$fastcgi_script_name;
as usual, it works, so I believe there is no other error in my
nginx.conf.
Tried to look up the
source
but due to its generalized nature, I couldn’t yet find where the parse
and variable substitution is actually done.
How do I mix text and variables in a free-form way with nginx, in
particular in the value part of fastcgi_param?
I am using nginx 1.2.5.
Thank you,
Kristof