\documentclass{article}
\usepackage{ulem}
\usepackage{graphicx}
\usepackage{hyperref}
\pagestyle{headings}
\begin{document}
\part{File\_PDF}
<pre><code class="language-php">

require\_once 'File/PDF.php';

\$p = \&File\_PDF::factory('P', 'mm', 'A4');

\$p->setinfo('title', 'FOOOODOOOO');
\$p->setinfo('subject', 'The Subject field :-)');
\$p->setinfo('creator', 'Not mine');

\$p->open();
\$p->setMargins(50, 50);
\$p->addPage('P');
\$p->setFont('arial', '', 15);
\$p->write(10, 'This is some text\textbackslash\{\}n');
\$p->write(10, 'And this is some more text\textbackslash\{\}n***\textbackslash\{\}n');

\$p->text(10, 20, 'Hello');
\$p->close();
// \$p->save('foo.pdf');
\$p->output('foo.pdf', 'true');
</code></pre>
\end{document}