Question

I have a rather complex situation that I need to get working, for some reason I am almost there but still not quite.

In PHP I create arrays and send to it javascript through json, I am quite sure that my problem is in this part of the code.

$insertIDs = array();

foreach($recipients as $userID)
{   
            //MySQL insert removed from question 
    $insertID = mysql_insert_id();
    array_push($insertIDs, $array[$userID] = $insertID);
}


$json = array();
$json['fromID'] = $session;
$json['insertIDs'] = $insertIDs;
    $json['recipients'] = $recipients;
echo json_encode($json);

when I console.log the results of this in javascript, I get:

{ messageID: 40,
  fromID: '1',
  insertIDs: [ 44 ],
  recipients: [ '3' ] }

Now in javascript when I try to access the insertIDs by the userID which I set it to be in the php above, I just get undefined as a result. How can I do this so I can access each insertID by the userID?

for example: json.insertIDs[userID]

if I simply call it by: json.insertIDs[0] it does return the first insertID, however when there are multiple I need to be able to have an easy way to access each usersID insertID.

Answer 1

I’m not quite sure what you are trying to do, since in the forloop $insertID is always the same value but:

It seems like json.InsertIDs is an array of the form json.InsertIds = Array(44);

Where as you want it to be Array(3 => 44)

try changing your forloop from

foreach($recipients as $userID){   
$insertID = mysql_insert_id();
array_push($insertIDs, $array[$userID] = $insertID);
}

to

foreach($recipients as $userID){   
    $insertID = mysql_insert_id();
    $insertIDs[$userID] = $insertID;
}