MySQL INSERT与PHP中的外键问题

I am using PDO to insert values into my table like this:

$query = "INSERT INTO Maps(meetingId, street, city, code, centerLat, centerLon, zoom, markerVisible, markerLat, markerLon) VALUES (:meetingId, :street, :city, :code, :centerLat, :centerLon, :zoom, :markerVisible, :markerLat, :markerLon)";

$paramArr = array(
    ":meetingId" => intval($mapInfo['meetingId']),
    ":street" => $mapInfo['street'],
    ":city" => $mapInfo['city'],
    ":code" => $mapInfo['code'],
    ":zoom" => $mapInfo['zoom'],
    ":centerLat" => $mapInfo['center']['lat'],
    ":centerLon" => $mapInfo['center']['lon'],
    ":markerVisible" => $mapInfo['marker']['visible'],
    ":markerLat" => $mapInfo['marker']['lat'],
    ":markerLon" => $mapInfo['marker']['lon']
);

$db = $this->databaseManager ->getDB();
$query = $db->prepare($query);

foreach ($paramsArray as $key => $value) {
    $query->bindParam($key, $value, PDO::PARAM_INT);
}

When I execute this query I get:

SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint

meetingId is foreign key but I add a key that I am 100% sure exists in te relevant table. This key is of type int.

On the other hand if I remove the first variable and type in proper id in its place (that again I am sure exists) I get

SQLSTATE[HY000]: General error

Am I missing something here?