What is the significance of PHP parsing between <?php and ?> tags in relation to passing variables?

When passing variables between PHP tags, it is important to ensure that the variables are properly parsed within the PHP code. This can be achieved by enclosing the variables within the <?php and ?> tags so that they are recognized and processed by the PHP parser. Failure to do so may result in errors or the variables not being recognized by the PHP interpreter.

&lt;?php
$variable = &quot;Hello, World!&quot;;
echo $variable;
?&gt;