using implode to combine multiple select
<p>I have a php page like  this :</p>

<pre><code>&lt;html&gt;
    &lt;body&gt;
     &lt;form method="post" action="catch_combo.php"&gt;
      &lt;select name="selr[]" multiple&gt;
       &lt;option value="1"&gt;1&lt;/option&gt;
       &lt;option value="2"&gt;2&lt;/option&gt;
       &lt;option value="3"&gt;3&lt;/option&gt;
       &lt;option value="4"&gt;4&lt;/option&gt;
       &lt;option value="5"&gt;5&lt;/option&gt;
      &lt;/select&gt;
      &lt;input type="submit"&gt;
     &lt;/form&gt;
    &lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p>I am trying to catch the selected values in catch_combo.php which looks like this:</p>

<pre><code>&lt;?php
$two;
    if(isset($_REQUEST['selr']))
     {
     $one=$_POST['selr'];
     foreach ($one as $a) 
     {
     $two = implode(",", $a);
     }
     echo $two;
     }
     ?&gt;
</code></pre>

<p>When I run this it says </p>

<p>'Invalid arguments passed for implode' I am missing something?</p>
