用ajax传递JavaScript值到PHP变量

Question

I am trying to use a Flash detection script to assess whether Flash Plugin is enabled in the user browser so that a different page loads. The Flash detection script is as follows, using jquery 1.8.2 and jquery.jqplugin 1.0.2

<script type="text/javascript" src="jquery-1.8.2.min.js"></script>
<script type="text/javascript" src="jquery.jqplugin.1.0.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
    $("#withflash").hide();
    $("#noflash").hide();
    if ($.browser.flash == true)
      $("#withflash").show ();
    else
      $("#noflash").show ();
});
</script>
<div id="withflash">Flash Supported</div>
<div id="noflash">Flash Not Supported</div>

I get the display that "Flash Supported" if Flash Plugin is present.. I need to capture the value whether flash plugin value is true in a php variable $hasFlashSupport as below:

<?php
echo " $hasFlashSupport";
exit;
?>

I am aware that PHP is server based and Javascript is client based.. Hence Ajax would be a nice option to capture the javascript variable to my php variable. I am totally ignorant about Ajax syntax and how to achieve it.

Request the experts here to help me out with the code on how this can be achieved... Thanking all of you in advance..

Answer 1

您可以使用具有getElementById方法的DOMDocument对象来实现。

Answer 2

Try this:

if true

<div id="withflash">
    <?php echo '$hasFlashSupport'; ?>
</div>

else

<div id="noflash">
    <?php echo '$hasFlashSupport'; ?>
</div>