PHP，是否可以保存会话变量中动态生成的html？

Question

I was wondering...

I have this html for example generated dynamically with php:

<div>
 <ul>
  <li>Some content</li>
 </ul>
</div>

This content will change always depend of the user input. So my question.. is possible to save the html generated after render the page in a $_SESSION variable and then return it in another page?

The only idea I have is:

//after query the sql

$_SESSION['html'][] = 'html content';
echo 'html content';

so after render all the page I will have all my html stored in the $_SESSION['html'] variable... but doesn't look good :S

Answer 1

<?php ob_start(); ?>
<div>
 <ul>
  <li>Some content</li>
<?php echo "<li>Some more content</li>"; ?>
 </ul>
</div>
<?php
$_SESSION['html'][] = ob_get_contents();
ob_end_flush();   // or ob_end_clean();

The "ob" functions are for output buffering. They will capture in a buffer all output from echo statements or outside <?php ?> tags. After saving what's in the buffer with ob_get_contents, you can then send what's in the buffer with ob_end_flush or discard it with ob_end_clean.