Parameter value in URL does removed in mail by using mail() in php
<p>i'm using following code to send confirmation mail, but i dont know why the url parameter in mail removed
and in mail i'm getting url like <code>http://example.com/confirm.php?user_id=</code> parameter value (1) is being removed</p>

<pre><code>$headers = "From: admin@example.com \n";
    $headers .= "X-Mailer: PHP/SimpleModalContactForm";
    $headers .= "MIME-Version: 1.0\n";
    $headers .= "Content-type: text/html; charset=utf-8\n";
    $headers .= "Content-Transfer-Encoding: quoted-printable\n";

    $subject = "Confirm Your Registration Example.com";
    $subject = mb_encode_mimeheader($subject, "UTF-8", "B", "\n");
    $to="abc@demo.com";
    $body="&lt;table&gt; &lt;tr&gt; &lt;td&gt; Hello &lt;/td&gt; &lt;/tr&gt;";
    $body.="&lt;tr&gt; &lt;td&gt; Please confirm your registration by clicking following link  &lt;td&gt; &lt;/tr&gt;";
    $body.="&lt;tr&gt; &lt;td&gt;  http://example.com/confirm.php?user_id=1&lt;/td&gt; &lt;/tr&gt;";

    $body.="&lt;/table&gt;";


    @mail($to, $subject, $body, $headers) or  die("Unfortunately, a server issue prevented delivery of your message.");
</code></pre>
