Header in PHP

PHP header is a PHP built-in function for sending a raw HTTP header.

What is the header in PHP?

PHP headers are PHP built-in functions for sending raw HTTP headers. The HTTP function manipulates the information sent by the web server to the client or browser, and then sends further output. The PHP header () function sends the raw HTTP headers to the client or browser.

How can I use header in PHP?

  • Use the get_headers() to Get Headers of a Given URL in PHP.
  • Use $_SERVER to Get a Single HTTP Request Header for Your Server in PHP.
  • Use the apache_request_headers() Function to Get All the Request Headers of Your Apache Server in PHP.
  • Use $_SERVER to Get All HTTP Request Headers for Your Server in PHP.