HttpHeaderLines.php - Examples of Inserting Header Lines

This section provides a tutorial example on how to insert HTTP response header lines using the header() function.

Now let's see how the PHP engine defines header lines and how you can control them. First create this simple script, hello.php, and copy it to c:\inetpub\wwwroot.

Hello <?php echo "world!"; ?>

Then obtain the response with "php HttpRequestGet.php /hello.php":

HTTP/1.1 200 OK
Date: Sat, 26 Jan 2019 22:40:01 GMT
Server: Apache/2.4.37 (Win64)
X-Powered-By: PHP/7.3.0
Connection: close
Content-Type: text/html; charset=UTF-8

Hello world!

Comparing with the static files described in the previous section, the output shows:

Now, I am ready to instruct the PHP how to define header lines. Here is my testing script, HttpHeaderLines.php:

#  HttpHeaderLines.php
#- Copyright (c) 2005-2019,, All Rights Reserved.
   $text = "<html><body>Hello world!</body></html>";
   header("Content-Type: text/xml;charset=utf-8");
   header("Content-Length: ".strlen($text));
   header("Version: Unknown");
   header("Version: 2019");
   header("Key-Word: PHP");
   header("Key-Word: HTTP", false);

Here is the output with "php HttpRequestGet.php /HttpHeaderLines.php":

HTTP/1.1 200 OK
Date: Sat, 26 Jan 2019 22:44:26 GMT
Server: Apache/2.4.37 (Win64)
X-Powered-By: PHP/7.3.0
Version: 2019
Key-Word: PHP, HTTP
Content-Length: 38
Connection: close
Content-Type: text/xml;charset=utf-8

<html><body>Hello world!</body></html>

Okay. What can we say about the output?

Last update: 2019.

Table of Contents

 About This Book

 Introduction and Installation of PHP 7.3

 PHP Script File Syntax

 PHP Data Types and Data Literals

 Variables, References, and Constants

 Expressions, Operations and Type Conversions

 Conditional Statements - "if" and "switch"

 Loop Statements - "while", "for", and "do ... while"

 Function Declaration, Arguments, and Return Values

 Arrays - Ordered Maps

 Introduction of Class and Object

 Integrating PHP with Apache Web Server

 Retrieving Information from HTTP Requests

 Creating and Managing Sessions in PHP Scripts

 Sending and Receiving Cookies in PHP Scripts

Controlling HTTP Response Header Lines in PHP Scripts

 What Is an HTTP Response

 HTTP Response Header Lines

 header() - Inserting a Raw Header Lines

 HttpRequestGet.php - Viewing Header Lines

 Response Header Lines of Static Files

HttpHeaderLines.php - Examples of Inserting Header Lines

 Location: - Forcing the Browser to Redirect to Another URL

 Content-Type: - Generating Non-HTML Response Body

 Content-Disposition: - Sending Files for Downloading

 MySQL Server Connection and Access Functions

 Functions to Manage Directories, Files and Images

 SOAP Extension Function and Calling Web Services

 SOAP Server Functions and Examples

 Localization Overview of Web Applications

 Using Non-ASCII Characters in HTML Documents

 Using Non-ASCII Characters as PHP Script String Literals

 Receiving Non-ASCII Characters from Input Forms

 "mbstring" Extension and Non-ASCII Encoding Management

 Managing Non-ASCII Character Strings with MySQL Servers

 Configuring and Sending out Emails

 Outdated Tutorials


 Full Version in PDF/EPUB