HTML과 PHP 블록 인라인 분리 시각화

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>PHP 출력문</title>
    </head>
    <body>
        <?php
        $year = 2016;
        ?>
        <?php echo "PHP를 배우자." ?>
        <?php echo "<br>" ?>
        <?php echo 2016 ?>
        <?php echo "<br>" ?>
        <?php echo $year ?>
        <?php echo "<br>" ?>
        <?php echo $year + 10 ?>
        <?php echo "<br>" ?>
        <?php echo abs(-1) ?>
    </body>
</html>