I am trying to create a PHP application that lets me uploading data to a MongoDB collection. For that I have "installed" the PHP driver with no problems.
However, I cannot find anyway -neither in the PHP guide- how could I update an element in an array of arrays.
Collection structure
As you may see, _unidades is an array of arrays. Each of those arrays contains an ID, a string and another array. In my case, which will be chosen depends on previous param -it has to match with element 1 of one of them.
Once I have selected that structure, I want to insert a new array into its array of arrays (position 2).
Regarding code, I tried the following:
$bulk = new MongoDB\Driver\BulkWrite();
$bulk->update(
[
'_isbn' => (int) $_POST["isbn"],
'_topics' =>
[
'0' => (int) $_POST["topic"]
]
],
[
'$set' => [
'1' => array($_POST["sentence"], $_POST["question"])
]
]
);
$writeConcern = new MongoDB\Driver\WriteConcern(MongoDB\Driver\WriteConcern::MAJORITY, 100);
$resultado = $manager->executeBulkWrite('libreee.faq', $bulk, $writeConcern);
However as you can see I am not capable to determine at least that it doesn't have to be an specific array (7th line).
Once said that I look forward to receiving your help.
Thanks a lot in advance.
Regards,
Ciconia.