Questions about the Include HTML file in PHP, why HTML can be executed in PHP

Before the tutorial in W3SHXXL, the above explanation of include is to copy the specified file to the place where this instruction was executed.

This is really a pit to me ....

When it comes to MVC, the controller displays the view with an include HTML view file, which is obviously unreasonable if the HTML can be parsed directly in the PHP tag, as described above.

Finally solve the problem or rely on PHP manual. Sure enough, the handbook is still in the future, we must develop the habit of reading manuals before encountering problems.

According to the manual explanation:

When the include contains a file and executes the file, it exits PHP mode and parses the file in HTML mode.

This is why HTML files must be defined in PHP tags if you want to insert PHP.

Questions about the Include HTML file in PHP, why HTML can be executed in PHP