If you really want to dirty your hands, then go for it.
If you are using PHP 7.2 or lower version then this plugin will work, otherwise we need to make some changes in plugin file and its location is wp-content\plugins\equation-editor\tiny_mce_wiris\integration\lib\php\boot.class.php
Line 834
$qname = ($bn == ‘HList’ && empty($pack)) ? ‘List’ : join(array_merge($pack, array($bn)), ‘.’);
to
$qname = ($bn == ‘HList’ && empty($pack)) ? ‘List’ : implode(‘.’,array_merge($pack, array($bn)));
Line 840
‘phpname’ => join(array_merge($pack, array($prefix . $bn)), ‘_’)
to
‘phpname’ => implode(‘_’,array_merge($pack, array($prefix . $bn)))
Also open file
wp-content\plugins\equation-editor\tiny_mce_wiris\integration\service.php
comment line 14,15,16,
if (get_magic_quotes_gpc() == 1) {
$params = array_map(‘stripslashes’, $params);
}
Enjoy
