运行php文件后如何打开html文件？ [重复]

Question

This question already has an answer here:

• PHP redirect after form completed 5 answers

I am a complete beginner in web development in regards to php. Right not I am using:

    <form action="phpfile.php">
    <input type="submit" value="click on me!">
    </form>

To open up my php file, which is a simple echo "hello world!" (for testing purposes) The php file that I would use would be this sendmail file

    <?php
    $to = '[e-mail]';
    $subject = 'Mailer Test';
    $message = 'This is a test, Thanks Person';
    $headers = "From: [e-mail]
";
    ?>

How can, after this is run, a html file would open as soon as the file is done loading? Like a "You have completed the task" page essentially (Also I'm using Xampp which has inbuilt sendmail, so the file does work. Once again temporary before I move onto a webserver)

Thanks!!

</div>

Answer 1

use this :

header('Location: http://localhost/yourHtmlFile.html');

but make sure your php didn't output anything before it

update

another workaround is to use include ('yourHtmlFile.html');