What is cross browser

Question

Is php cross browser compatible

Answer 1

PHP has nothing to do with browser compatibility it's running on server side

Answer 2

What is cross browser

Answer 3

It means that the same piece of code works the same way in every type of browser let it be google chrome or microsoft internet explorer. It can be applied to css or javascript because they run in the browser. However, to go back to your original question: php is executed on the server so, cross browser compatibility doesn't apply.