Php: how to obtain the header information sent to the user _ PHP Tutorial

Php obtains the header information sent to the user. Php: how to obtain the header information sent to the user this article mainly introduces how php gets the header information sent to the user, involving the use of headers_list function in php, method for getting the header information sent to the user by a friend php

This article mainly introduces how to obtain the header information sent to the user by php. it involves the headers_list function usage skills in php. For more information, see

This example describes how php obtains the header information sent to users. Share it with you for your reference. The specific analysis is as follows:

The headers_list function has no parameters and returns an array. The returned array contains a digital index table that contains the header information to be sent to the client.

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Header ("Expires: Sat, 12 Dec 1989 05:30:00 GMT "); Echo "This is some output. "; Echo "Headers sent are: "; $ Headers = headers_list (); Foreach ($ headers as $ header ){ Echo" $ Header "; } Echo" "; ?>

I hope this article will help you with php programming.

This article describes how php obtains the header information sent to users. it involves the headers_list function usage skills in php...