<？=标签是什么意思？ [重复]

Question

This question already has an answer here:

• What does this symbol mean in PHP <?= 4 answers

I'm using CakePHP.

Today I tried to link a page of the Page Controller to another page from the Page controller, and I couldn't get to see the link until I wrote

<?= $this->Html->link('myPage', array('controller' => 'pages', 'action' =>
    'myPage')); ?>

Why did I have to write <?= and not <?php ?

Generally speaking, when do I have to use <?= and when <?php ?

</div>

Answer 1

<?= is short for <?php echo

Add echo to your code and it will work.

This is not unique to CakePHP, it's just part of PHP.