Biblioteca LMHT para PHP. Transforma arquivos LMHT em HTML.
composer require designliquido/lmht-php
include __DIR__ . '/vendor/autoload.php';
$lmht = new DesignLiquido\Lmht\Lmht;
echo $lmht->converterPorString(
'<lmht><corpo></corpo></lmht>'
);