What is the primary purpose of HTTP Functions in PHP?

Reference guide for PHP HTTP header manipulation, response codes, redirects, and header status codes.

Are HTTP Functions enabled by default in PHP 8?

Yes, standard HTTP Functions are core parts of the PHP standard library and require no external PECL extensions.

PHP HTTP Functions Reference Guide

This reference page provides a comprehensive, alphabetical catalog of all built-in HTTP Functions in PHP. In modern web development and university exams (BCA, BSc CS, B.Tech), understanding these core functions accelerates programming speed and prevents you from reinventing existing standard library tools.

Quick Tip: In modern PHP 8, you can use named arguments to specify parameters without having to memorize optional default argument positions!

Function	Description
header()	Sends a raw HTTP header to a client
headers_list()	Returns a list of response headers sent (or ready to send)
headers_sent()	Checks if / where the HTTP headers have been sent
setcookie()	Defines a cookie to be sent along with the rest of the HTTP headers
setrawcookie()	Defines a cookie (without URL encoding) to be sent along with the rest of the HTTP headers

PHP HTTP Functions Reference Guide

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