Hi Matthew B,
Thank you for reaching out to Microsoft Q & A forum.
1.Make sure you are editing and saving the correct PHP file before refreshing your browser.
2.Start a local PHP server by running php -S localhost:8000 in the terminal and visit http://localhost:8000/yourfile.php.
3.Clear your browser cache by using Ctrl + Shift + R or try opening the page in incognito mode.
4.Check if PHP is installed by running php -v in the terminal. If it’s not installed, you may need to set it up.
5.Confirm that PHP is processing by adding <?php phpinfo(); ?> to your file,if nothing appears, your setup may be incorrect.
Please feel free to contact us if you have any additional questions.
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