PHP Append One Array to Another (Not Array_Push or +)

PHP append one array to another (not array_push or +)

array_merge is the elegant way:

$a = array('a', 'b');
$b = array('c', 'd');
$merge = array_merge($a, $b); 
// $merge is now equals to array('a','b','c','d');

Doing something like:

$merge = $a + $b;
// $merge now equals array('a','b')

Will not work, because the + operator does not actually merge them. If they $a has the same keys as $b, it won't do anything.

Adding array into another array (not array_push or array_merge)

Iterate the data subarray, then iterate the sentenceArray, then if the ['path']['type'] value is bus and the ['path']['nodes'] subarray exists, then store that subarray as a separate group in the result array.

Code: (Demo)

$array = json_decode($json, true);
foreach ($array['data'] as $datas) {
    foreach ($datas['sentenceArray'] as $subitem) {
        if ($subitem['path']['type'] == 'bus' && isset($subitem['path']['nodes'])) {
            $result[] = $subitem['path']['nodes'];
        }
    }
}
echo json_encode($result);

Output:

[[{"lat":39.952418,"lng":32.85727},{"lat":39.952797,"lng":32.856825},{"lat":39.953102,"lng":32.856438}],[{"lat":39.964951,"lng":32.841305},{"lat":39.964785,"lng":32.841514}],[{"lat":39.952418,"lng":32.85727},{"lat":39.952797,"lng":32.856825},{"lat":39.953102,"lng":32.856438}],[{"lat":39.964951,"lng":32.841305},{"lat":39.964785,"lng":32.841514}]]

---

This also work on your full json input string to provide:

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---

Question Extension

To filter the results by user-provided value seq:

if (!isset($_GET['seq']) || !ctype_digit($_GET['seq'])){
    echo "Missing/Invalid SEQ value.";
} else {
    $array = json_decode($json, true);
    $result = [];
    $selected_seq = (int)$_GET['seq'];
    foreach ($array['data'] as $seq => $datas) {
        if ($seq === $selected_seq) {
            foreach ($datas['sentenceArray'] as $subitem) {
                if ($subitem['path']['type'] == 'bus' && isset($subitem['path']['nodes'])) {
                    $result[] = $subitem['path']['nodes'];
                }
            }
        }
    }
    echo json_encode($result);
}

PHP array_push one array into another

Correct way to do with array_push():-

array_push($years, array("2016" => array()));

But what you want, for that do:-

$years["2016"]= array();

Output:- https://eval.in/834452

Append several one-dimentional arrays to a one-dimentional array with array_push

array_push adds an element(s) to the end of the array.
since you are pushing an array onto your result, it will add it as an array instead of concatenating, which is the reason it is creating a 2D array.

You will need to use a technique that will concatenate/append the elements of the array to the result array.

One way you can do this by using the array_merge function like so:

$arr_Total_WordText = array_merge($arr_Total_WordText,$arrWordText);

Another way is to iterate the elements of the array $arrWordText
one by one and append them to your result.

How to append values from one array to another

If the order of your "total"-Array always stays like this you could transform the total into an numeric array before you add the values.

Like this

$arr["total" ] = ["a" => 1,"b" => 2, "c" => 3];
$arrNumeric = [];
foreach ($arr["total"] as $item) {
  $arrNumeric []= $item;
}

Afterwards you just need to run this code to add the array-values

$i = 0;
foreach ($studentsEditInfo['main'] as $values) {
    $values []= $arrNumeric[$i];
    $i++;
}

I did not test this, btw.

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