possible bug: normaliseLamAlef is no op.

[DrGo]

$search and $replace are identical in this block;
if ($this->normaliseLamAlef) {
$search = ['لا', 'لآ', 'لأ', 'لإ'];
$replace = ['لا', 'لآ', 'لأ', 'لإ'];
$text = str_replace($search, $replace, $text);
}