The most basic questions about getting started with PHP

When I first started PHP, I used wampserver, and then I could write the. PHP file. For example, you can write the. php file and enter & nbsp; "localhost/a. php" & nbsp; in the browser. then the file runs normally. But I want to follow the example on w3cschool: to create an html file: & lt; html & gt; & just getting started with PHP, the most basic problem
I use wampserver, and then I can write the. php file.
For example, you can write the. php file and enter "localhost/a. php" in the browser to run properly.
But I want to follow the example on w3cschool:
Create an html file as follows:








Create a php file as follows:



Welcome

Your email address is:




I put them in my www Directory. when I open the html file, enter the form and click the sumbit button.
File: // C:/wamp/www/php/welcome. php
The transfer information is not displayed. If I manually go to localhost/php/welcome. php, an error is reported indicating that the variable does not exist (this must be because it is not passed in ). I don't know how to redirect him to the correct localhost?

How can we ensure that data is correctly transmitted between html files and PHP files? Thank you! Share:
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File: // C:/wamp/www/php/welcome. php ???
You opened your html file in a browser on the desktop?

Enter localhost/php/your html file in the address bar of your browser.
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Access to html pages is the same as access to php pages. http: // localhost/xx.html is used instead of double-clicking