Why is the PHP echo statement sometimes echoed on the new page, sometimes echoing back on the original page?

  
  html代码
  
  

In this case, the Echo statement is echoed on the new page.
But if you put
PHP statements are combined, followed by HTML statements,
echo statements are echoed in front of the HTML code, which is why?
Excuse me, everyone!

Reply content:

  
  html代码
  
  

In this case, the Echo statement is echoed on the new page.
But if you put
PHP statements are combined, followed by HTML statements,
echo statements are echoed in front of the HTML code, which is why?
Excuse me, everyone!

The browser can only execute HTML code and cannot execute PHP code. PHP code is executed on the server, HTML content generated, returned to the browser, the browser can be displayed.

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