Is it necessary to include spaces in the HTML code when using PHP variables for input values?

It is not necessary to include spaces in the HTML code when using PHP variables for input values. However, it is good practice to include spaces for readability and maintainability of the code. To include spaces in the HTML code, you can concatenate the PHP variable with the surrounding text using the "." operator.

<?php
$name = "John Doe";
?>
<input type="text" name="username" value="<?php echo $name; ?>">