How to use a variable in place of a regex

Asked Jun 19 '19 at 06:55

Active Jun 19 '19 at 06:55

Viewed 948 times

I want to use a variable in a regex. Like,

set $valid_host_regex ...

if ($host !~ ((^$)|($valid_host_regex))) {
   return 404;
}

It seems it is not possible to use a variable name in regex string. How to use a variable in a regular expression in nginx?

So, I tried using complete regex as a variable

set $valid_host_regex ((^$)|(...))

if ($host !~ $valid_host_regex) {
   return 404;
}

But this is also not working. Am I doing something wrong, or is it just not possible to use a variable in place of regex? I am not able to find any documentation or answer for this anywhere.

Thanks in advance

asked Jun 19 '19 at 06:55

RaR

It’s not possible. And you’re doing something wrong. What problem do you want to solve? – Alexey Ten Jun 19 '19 at 07:23
You either should use separate server blocks or use regexp in server_name directive. – Alexey Ten Jun 19 '19 at 07:33

How to use a variable in place of a regex

0 Answers0