PHP HTTP Functions

From http://www.w3schools.com (Copyright Refsnes Data)

# PHP HTTP Functions

## PHP HTTP Introduction

The HTTP functions let you manipulate information sent to the browser by the Web server, before any other output has been sent.

## Installation

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

## PHP HTTP Functions

PHP: indicates the earliest version of PHP that supports the function.

Function | Description | PHP
--- | --- | ---
header() | Sends a raw HTTP header to a client | 3
headers_list() | Returns a list of response headers sent (or ready to send) | 5
headers_sent() | Checks if / where the HTTP headers have been sent | 3
setcookie() | Sends an HTTP cookie to a client | 3
setrawcookie() | Sends an HTTP cookie without URL encoding the cookie value | 5

## PHP HTTP Constants

None.

From http://www.w3schools.com (Copyright Refsnes Data)