CODEWITHSUNDEEP
php
LunGuang
LunGuang

Reputation: 21

Missing variables from $_SERVER

In the PHP source code, I echo out $_SERVER in one of my domain on server A and got returns me a list of data include DOCUMENT_ROOT and GATEWAY_INTERFACE and etc. However, in the another domain in server B didn't return me anything when I echo out same things. Can I know why?

Upvotes: 1

Views: 569

Answers (1)

domsson
domsson

Reputation: 4691

Just summarizing the comments, including my own.

The entries in this array are created by the web server. There is no guarantee that every web server will provide any of these; servers may omit some, or provide others not listed here.

from PHP manual on $_SERVER

While most servers will provide at least certain values within $_SERVER, there are no guarantees. Either design your code in a way that does not depend on the content of $_SERVER, or make sure that the very server you are going to use in production does in fact provide the values you need.

Upvotes: 2

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