PHP和wampserver：php代码将不会执行并显示在源代码中

Question

All of a sudden my php code won't execute and the php code is displayed in the source code.

Answer 1

I think WAMP is better than XAMP, coz WAMP is much user friendly !
First check if phpinfo() is working or not !
Check if PHP module is loaded by APACHE
Make sure you are writing <?php instead of <?