gistfile1.txt

# header content stored in database

<div id="wrapper">
    <div id="header"></div>

gistfile2.txt

# body content stored in database

<div id="form-content">
    <div id="creativebody" style="padding-top: 0 !important; padding-left: 32px; padding-right: 32px; margin-bottom: 20px">
        <div id="offers">
            <div class="offer">

{php} echo 'Hello!'; {/php}
{php}
$array = array(1,2,3,4,5);
foreach ($array as $value) {
    echo $value . "<br>";
}
{/php}

            </div>
        </div>
    </div>
</div>
<div class="clear"></div>
<a href="{{ redirectUrl }}" id="click-now" target="_blank"><div id="footergraphic"></div></a>

gistfile3.txt

# footer content stored in database

    <div style="font-size: 12px; margin: 10px 0; text-align: center">
        The third-party product names, logos, brands, and trademarks shown on this website are the property of their respective owners. These companies are not affiliated with ________________.
    </div>
    <div id="footer" style="padding-top: 0;">
        <a target="_blank" class="footer" href="/privacy.php">Privacy Policy</a>
    </div>
</div>

Parser.php

<?php

namespace JStout\MainBundle\Component\Twig\Extension;

use Twig_Extension,
    Twig_Filter_Method,
    Twig_Environment;

class Parser extends Twig_Extension
{
    public function getFilters()
    {
        return array(
            'allow_php' => new Twig_Filter_Method($this, 'twig_allow_php_filter', array('needs_environment' => true)),
        );
    }

    function twig_allow_php_filter(Twig_Environment $env, $value, $startTag = '<?php', $endTag = '?>')
    {
        if (false !== strpos($value, $startTag)) {
            if ($startTag !== '<?php' && $endTag !== '?>') {
                $value = preg_replace('/'.str_replace('/', '\\/', $startTag).'(.*?)'.str_replace('/', '\\/', $endTag).'/s', '<?php $1 ?>' , $value);
            }

            eval('?>' . $value . '<?php');
            return '';
        }

        return $value;
    }

    public function getName()
    {
        return 'parser';
    }
}