PHP Tutorials - Herong's Tutorial Examples - Version 4.20, by Dr. Herong Yang
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:
<?php # HttpHeaderLines.php #- Copyright (c) 2005-2019, HerongYang.com, All Rights Reserved. # $text = "<html><body>Hello world!</body></html>"; print($text); 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
Introduction and Installation of PHP 7.3
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
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
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