PHP - json_encode multiple arrays with same values count

In order to get the proper keys for your values in the JSON you will need to define those in your arrays that you have now. Something like this would work:

$joinedArrays = array($array1, $array2, $array3);

$JSONarray = array();
foreach($joinedArrays as $array){
    $JSONarray[] = array("title" => $array[0], "metadata" => $array[1], 
        "link" => $array[2]);
}

echo json_encode($JSONarray);

So first you compile all of the arrays that you have into one array and then in a foreach loop you create a new associative array with the proper keys and values and add that in as a new value in the $JSONarray, thereby creating a multidimensional array. Once you have all of your arrays parsed into new associative arrays, you can run json_encode($JSONarray); to get out a JSON formatted in the style that you have asked for.

If you don't compile the information into an associative array first, you will get out a JSON that looks like this:

[
    result: 
        {
            0:"Title1", 
            1:"320 KB/s 5.0 MB 1:24", 
            2:"http://www.example.com/Title1.mp3"
        },
        {
            0:"Title2", 
            1:"120 KB/s 2.8 MB 3:29", 
            2:"http://www.example.com/Title2.mp3"
        },
        {
            0:"Title3", 
            1:"250 KB/s 8.5 MB 4:59",
            2:"http://www.example.com/Title3.mp3"
        }
]

I tried this so i get your resulted json response like that hop you want that too

<?php
$arr1[] = array('title'=>'one','value'=>'one');
$arr1[] = array('title'=>'two','value'=>'two');
$arr1[] = array('title'=>'three','value'=>'three');
$arr['result'] = $arr1;

echo '<pre>';print_r(json_encode($arr));

You could just add each array to a new, multidimensional array like this:

$all_data = array();
$all_data[] = $first_array;
$all_data[] = $second_array;
$all_data[] = $third_array;

$json = json_encode($all_data);