February 2018
Beginner to intermediate
348 pages
9h 40m
English
Content preview from Nginx HTTP Server - Fourth Edition
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Working with variables
The Nginx SSI module also offers the possibility to work with variables. Displaying a variable (in other words, inserting the variable value into the final HTML source code) can be done with the echo command:
<!--# echo var="variable_name" -->
The command accepts the following three parameters:
- var: The name of the variable you want to display, for example, REMOTE_ADDR to display the IP address of the client.
- default: A string to be displayed in case the variable is empty. If you don't specify this parameter, the output is (none).
- encoding: Encoding method for the string. The accepted values are none (no particular encoding), url (encode text like a URL: a blank space becomes %20, and so on) and entity (uses HTML ...
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