什么是使用PHP快捷键操作符的内联PHP标记?

    <html>
    <head></head>
           <body>
                 <h1>Welcome to Our Website!</h1>
                 <hr/>
                 <h2>News</h2>
                 <h4><?=$data['title'];?></h4>
                 <p><?=$data['content'];?></p>
           </body>
    </html>

Can anyone tell me what's the "=" sign before variable names ? I thought of some echo alias but I couldn't find anything, thanks for your help

This tag is interpreted as <?php echo.

You can check it by writing <?= ?>, you'll receive error.

<?=$a?> is the shortcut for <? echo $a ?>, they are called "short tags" in PHP terminology

Check PHP documentation Escaping from HTML example #2 3rd item, and related ini setting short-open-tag