Encode JSON objects in JSON array using PHP

Question

I'm trying to encode 2 name/value pairs in a JSON object within a JSON array. At the moment I am able to encode the name/value pairs but each one goes in as a separate object within the array.

Here is my code:

    if ($tag == "getLatLng")
    {
        $lineNumber = $_GET['lineNumber'];
        $coordinates = $db->getCoOrds($lineNumber);

        if ($coordinates != false)
        {
            //Get data and set success = 1
            $response["success"] = 1;
            $response['coordinates'] = array();

            $arrayLength = count($coordinates);

            foreach ($coordinates as $value)
            //for ($i=0; $i<$arrayLength+1; $i++)
            {
                //echo $i;
            $response["coordinates"][]['latitude'] = $value[0];
            $response["coordinates"][]['longitude'] = $value[1];
            //$response["coordinates"][]['longitude'] = $coordinates[$i];
            }
            echo json_encode($response);
        }

This is a sample output:

    {"success":1,"error":0,"coordinates":[{"latitude":"00.000000"},{"longitude":"-00.000000"},{"latitude":"00.000000"},{"longitude":"-00.000000"},{"latitude":"00.000000"},{"longitude":"-00.000000"}]}

But I need this:

    {"success":1,"error":0,"coordinates":[{"latitude":"00.000000","longitude":"-00.000000"},{"latitude":"00.000000","longitude":"-00.000000"},{"latitude":"00.000000","longitude":"-00.000000"}]}

Thanks for your help!

Think Different · Accepted Answer · 2014-03-26 15:02:34Z

2

Try this

 $i=0;
foreach ($coordinates as $value)
        //for ($i=0; $i<$arrayLength+1; $i++)
        {

        $response["coordinates"][$i]['latitude'] = $value[0];
        $response["coordinates"][$i]['longitude'] = $value[1];
        $i++;
}

answered Mar 26, 2014 at 15:02

Think Different

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6 Comments

d199224 Over a year ago

Thankyou, works perfect. Can you explain to me what this does please?

Think Different Over a year ago

Sure. When you use $response["coordinates"][]['latitude'] an incremented value is assigned to the empty key, so if you repeat it, every time it will get an incremented value and makes it as $response["coordinates"][0]['latitude'] $response["coordinates"][1]['longitude'] Hope it is clear now.

Think Different Over a year ago

sorry I am new to stackoverflow can't get hold of the formatting yet :)

MisterBla Over a year ago

@ThinkDifferent Put your code in between backticks. (The ones next to the 1) Like this: $response["coordinates"][]['latitude']

MisterBla Over a year ago

@ThinkDifferent No worries, just a tip though, the help button is there for a reason, it contains the comment 'mini-Markdown' formatting.

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