PHP redirects are a very useful tool, but they can also be dangerous if not used properly.
If you've read an introduction to PHP 7.4 and how to build a website , you'll know that the header() function can be used to easily redirect a user to another page. However, using this function is not as simple as it appears. In this guide, we'll show you how to create a PHP redirect that won't cause major issues later on.
The Fundamental PHP Redirect Method
Most guides will tell you that you can simply use the header() function at the top of your pages to create a PHP redirect. To do so, use the function to send a new URL, such as this:
This header function should be placed right at the top of the page before you pass any HTML or text to your users' browsers. That is, it should come before the!DOCTYPE> declaration, any Java code, and any PHP code. Users will then be directed to the new URL.
While it may appear simple, when it comes to the header() function, the code's simplicity can lead developers astray. So, let's take a look at how to use this function correctly.