What are the best practices for ensuring proper PHP code execution within an HTML file without displaying the raw code?

When embedding PHP code within an HTML file, it's important to ensure that the PHP code is executed properly without displaying the raw code to the user. To achieve this, you can use the PHP opening and closing tags <?php ?> to encapsulate your PHP code within the HTML file. This way, the PHP code will be processed by the server before the HTML is sent to the client, preventing the raw PHP code from being displayed. 

&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;PHP Code Execution&lt;/title&gt;
&lt;/head&gt;
&lt;body&gt;
    &lt;h1&gt;Welcome &lt;?php echo &quot;User&quot;; ?&gt;&lt;/h1&gt;
&lt;/body&gt;
&lt;/html&gt;

Keywords

PHP HTML code execution display security

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