As per my knowledge the super global array element $_SERVER['SERVER_ADDR'] returns the IP address of the host server.
I've installed PHP using XAMPP server software on my machine that runs on Windows 10 operating system.
I wrote following code in a file titled demo.php(Location of file on my drive is C:\xampp\htdocs\php_playground\demo.php)
The code in a file demo.php is as follows :
<!DOCTYPE html>
<html>
<body>
<?php
echo $_SERVER['SERVER_ADDR'];
?>
</body>
</html>
and the output of above code I received after running the program in a web browser by hitting the URL http://localhost/php_playground/demo.php is as below :
::1
I'm not understanding this output.
Also, as a part of guessing I run the same program by hitting the URL http://127.0.0.1/php_playground/demo.php in a web browser and I got the following output :
127.0.0.1
I want to know why there is a discrepancy in the output of the same program and why it's not returning proper value in first case?
Thank You.