php anexar a la matriz
$myArr = [1, 2, 3, 4];
array_push($myArr, 5, 8);
print_r($myArr); // [1, 2, 3, 4, 5, 8]
$myArr[] = -1;
print_r($myArr); // [1, 2, 3, 4, 5, 8, -1]
php array push
If you're going to use array_push() to insert a "$key" => "$value" pair into an array, it can be done using the following:
$data[$key] = $value;
It is not necessary to use array_push.