PHP Foreach() invalid argument
<p>I'm receiving the fooling error below but not sure why. the $_Post all have data.</p>

<p><strong>error:</strong> Warning: Invalid argument supplied for foreach() in /home/soc/process_member.php on line 19</p>

<pre><code>    $valid = true; 
    foreach($_POST['add'] &amp;&amp; $_POST['cpl'] as $value) { 
        if(!isset($value)) { 
            $valid = false;
        } 
    }
    if(!$valid) { 
        $err .= 'please fill in all fields';
        $en['reg_error'] = '&lt;div class=err style="color: #FF0000;"&gt;&lt;b&gt;'._error.': '.$err.'&lt;/b&gt;&lt;/div&gt;&lt;br&gt;';
        load_template('modules/members/templates/s_reg.tpl');   
    }
</code></pre>
