preg_replace syntax
<p>I have an existing piece of code that successfully from what I can tell replace empty form values for a text field called your-subject.  I need to do the same thing for another field called Bcc.  I cannot seem to get my syntax correct when I try to add the name="Bcc" field.  Can someone show me the proper syntax? The page just simply fails to load so I'm guessing I missed a quote or escape character somewhere?</p>

<p>Works fine:</p>

<pre><code>echo preg_replace('!&lt;input type="text" name="your-subject" value=""!'
    ,'&lt;input type="text" name="your-subject" value="MLS# '.$row['mlnum'].'"'
    ,do_shortcode( '[contact-form-7 id="17" title="Contact Form"]' )
);
</code></pre>

<p>Broken:</p>

<pre><code>echo preg_replace('!&lt;input type="text" name="your-subject" value=""!'
    ,'&lt;input type="text" name="your-subject" value="MLS# '.$row['mlnum']
        .'"''!&lt;input type="text" name="bcc" value=""!'
    ,'&lt;input type="text" name="your-subject" value="test@test.com"'
    ,do_shortcode( '[contact-form-7 id="17" title="Contact Form"]' )
);
</code></pre>
