syntax error, unexpected T_IS_EQUAL
<pre><code>        &lt;?php
    if(isset($_POST['zapisz'])) { 
    $zapytanie_update = mysql_query("UPDATE `emotki` SET `kod` = '".$_POST['kod']."',`opis` = '".$_POST['opis']."', `glowna` = '".$_POST['glowna']."' WHERE id= $id");
    echo 'Emotka zapisana.&lt;br/&gt;&lt;a href="index.php"&gt;&amp;laquo; Powrót&lt;/a&gt;';
    }

    $usun = $_POST['usun'];
    if(isset($usun == 1)
    {
    $usuwaj = mysql_query("DELETE FROM `emotki` WHERE 'id'= $id");
    }



else {
?&gt;
</code></pre>

<p>i have 
( ! ) Parse error: syntax error, unexpected T_IS_EQUAL, expecting ',' or ')' in C:\wamp\www\emotki_admin\edytuj.php on line 63</p>

<p>line 63 is <code>if(isset($usun == 1)</code></p>

<p>where is error?</p>
