What is the significance of using "<form>" and "</form>" tags in PHP code and how can it affect spacing?

Using "<form>" and "</form>" tags in PHP code is significant because they define the beginning and end of a form in HTML. This allows for proper organization and structure of form elements within a webpage. When not properly used, it can affect spacing and layout of the form elements on the webpage.

&lt;form action=&quot;submit.php&quot; method=&quot;post&quot;&gt;
  &lt;!-- Form elements go here --&gt;
&lt;/form&gt;