ORA-01722：无效的数字，SQL in子句

Question

I have the following query:

$query = "delete from document where document_lientype =:lienType and document_lienid =:lienId and document_id not in (:docsIds)";
$params = array(
    'lienType' => $lienType,
    'lienId'   => $lienId,
    'docsIds'  => implode(',',$docsIds)
);

When I dump $docsIds I get:

array(3) {
  [0] =>
  int(19357)
  [1] =>
  int(19358)
  [2] =>
  int(19378)
}

And when I dump implode(',',$docsIds) I get:

string(17) "19357,19358,19378"

When I run the query in my project I get the error ORA-01722: invalid number which means it is not being able to convert the docsIds into integers.

When I run the query in TOAD, it executes correctly; so the problem is coming from that in clause.

I tried to construct the string in all the ways I could imagine of, including: "'19357','19358','19378'" but I still get the same error.