php output single quotes
<p>The following outputs double quotes. How can I get it to output single quotes?</p>

<pre><code>&lt;?php
$xml_output = "&lt;?xml version=\"1.0\"?&gt;\n";
$xml_output .= "&lt;I song='song'&gt;";
echo $xml_output;
</code></pre>

<p>The output is <code>&lt;I song="song" /&gt;</code></p>

<p>Output should be <code>&lt;I song='song' /&gt;</code></p>
