Creating a multidimensional array from prexisting arrays in PHP

Question

I currently have 3 associative arrays I need to turn into one multidimensional array. I feel like the solution is elementary but I cant seem to find it online.

The arrays are pretty lengthy as they are pulling data from MySQL tables I have on my backend So I would prefer not to write out the arrays by hand or if there is an easier way to do this other than using a loop. I am then serializing the arrays so I can pass them through a 'hidden' input on my form.

So how would i turn:

Array1[]
Array2[]
Array3[]

into

BigArray[Array1[],Array2[],Array3[]];

Thanks!

Answer 1

It would be easier to set them as arrays inside the larger array when you pull the arrays out of the database, however just this after the fact:

$BigArray = [$Array1, $Array2, $Array3];
//or
$BigArray = array($Array1, $Array2, $Array3);

An example for fetching from the database:

//query
while ($row = $result->fetch_assoc()) {
    $Array1[] = $row;
}
$BigArray[] = $Array1;

//query
while ($row = $result->fetch_assoc()) {
    $Array2[] = $row;
}
$BigArray[] = $Array2;

Answer 2

使用array_merge ：在这里：)

$bigArray = array_merge($array1, $array2, $array3);

Answer 3

very simple

BigArray[] = Array1;
BigArray[] = Array2;
BigArray[] = Array3;

this will make BigArray (multi-dimensional) array. If you don't want multi-dimensional array, then you should change your logic like this

BigArray[] = implode(',', Array1);
BigArray[] = implode(',', Array2);
BigArray[] = implode(',', Array3);