semantical error when passing an array to the query - php

Question

i have an array with conditions i have already prepared to pass it to the query:
array:
('u.registered = 1','u.active = 0', 'u.gender = M')
when i pass to the query, it works with the number comparison but not with the varchar which is M. The error appears in "gender", it says it is a semantical error. I assume is because i am not using expr()->literal('M'), but i can't do this because the query is "already built"..
Is there an alternative way so i don't have to code all over again?
this is the code:
public function customR($data){
// var_dump($data);die();
$this->qb = $this->em->createQueryBuilder();
$andX = $this->qb->expr()->andX();
$this->qb->select('u')
->from('models\User','u');
foreach ($data as $value){
$andX->add($value);
}
$this->qb->add('where', $andX);
$query = $this->qb->getQuery();
// var_dump($query);die();
$obj = $query->getResult();
var_dump($obj);die();
if (!empty($obj)){
return $obj;
return false;
}
}

Answer 1

I found no way to do this, so i just changed it a little bit.
I send an array with some elements, just to have the reference of what exists and what doesn't.
So, in my Data Service I've created a function and a snippet of that function to solutionate my question was to do this:
if($key == 'gender'){
foreach($value as $key=>&$v){
$condition = ('u.gender = '. $this->qb->expr()->literal($v));
$orX->add($condition);
}
}