   #PHP Manual Function Reference gmp_xor header

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XXXVII. HTTP functions

Introduction

   These functions let you manipulate the output sent back to the remote
   browser right down to the HTTP protocol level.

Requirements

   No external libraries are needed to build this extension.

Installation

   There is no installation needed to use these functions; they are part
   of the PHP core.

Runtime Configuration

   This extension has no configuration directives defined in php.ini.

Resource Types

   This extension has no resource types defined.

Predefined Constants

   This extension has no constants defined.

   Table of Contents
   header -- Send a raw HTTP header
   headers_list -- Returns a list of response headers sent (or ready to
          send)

   headers_sent -- Checks if or where headers have been sent
   setcookie -- Send a cookie
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