Problem with $_SERVER['QUERY_STRING'] in php

I used $_SERVER['QUERY_STRING'] in my code. $_SERVER['QUERY_STRING'] has a value on my local computer, but $_SERVER['QUERY_STRING'] does not get a value on the server. Why?

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I used $_SERVER['QUERY_STRING'] in my code. $_SERVER['QUERY_STRING'] has a value on my local computer, but $_SERVER['QUERY_STRING'] does not get a value on the server. Why?

$_SERVER['QUERY_STRING'] is used to obtain the parameters and values ​​behind the url. Is the url you visited different?

Dump

$_SERVER and take a look.