How do I trigger a php function on onclick event?
<p>For instance I have a php function </p>

<pre><code>&lt;?php
   function SayHi($msg){
       return $msg;
   }
?&gt;
</code></pre>

<p>The following part triggers the onclick event </p>

<pre><code>&lt;a href="" onclick=""&gt;Click&lt;/a&gt;
</code></pre>

<p>How can I merge the two such that when I click on <code>Click</code>, the php function is invoked..?</p>
