How can I combine 2 array in php or laravel - php

Question

I would like to combine 2 arrays into 1 in PHP or laravel. I've searched this site for similar questions but can't seem to find an answer.
Can someone help me with this?
**array 1 -- $insertData **
Array
(
[0] => Array
(
[prid] => 4
[vendor_id] => 1
)
[1] => Array
(
[prid] => 5
[vendor_id] => 2
)
)
**Array - 2 $requestData **
Array
(
[vendor_id] => Array
(
[0] => 1
[1] => 1
[2] => 2
[3] => 2
)
[item] => Array
(
[0] => 2
[1] => 3
[2] => 4
[3] => 5
)
[qty] => Array
(
[0] => 12
[1] => 13
[2] => 14
[3] => 15
)
)
**Required Output ---- how can I do this array1 and array2 combine into a single array **
Array
(
[0] => Array
(
[prid] => 4
[vendor_id] => 1
[item] => 2
[qty] => 12
)
[1] => Array
(
[prid] => 4
[vendor_id] => 1
[item] => 3
[qty] => 13
)
[2] => Array
(
[prid] => 5
[vendor_id] => 2
[item] => 4
[qty] => 14
)
[3] => Array
(
[prid] => 5
[vendor_id] => 2
[item] => 5
[qty] => 15
)
)
My controller
public function prtmulti(Request $req)
{
$maxPrId = newpr::max('prid');
// print_r($maxPrId);
echo "<pre>";
$requestData = $req->all();
if (array_key_exists("vendor_name", $requestData)) {
$insertData = [];
$uniqueData = array_unique($requestData["vendor_name"]);
foreach ($uniqueData as $key => $value) {
$maxId = $maxPrId+1;
$insertData[] = ['prid' => $maxId, 'vendor_id' => $value];
$maxPrId = $maxPrId+1;
}
}
print_r($insertData);
print_r($requestData);
}

Answer 1

you can achieve this using the array_combine function in php, for example:
<?php
$fname=array("Peter","Ben","Joe");
$age=array("35","37","43");
$c=array_combine($fname,$age);
print_r($c);
?>

Answer 2

I'm pretty sure that Laravel doesn't offer anything out of the box to execute your desired merging technique (and I don't see why it would bother).
Assuming that the vendor_id values in the first array are unique, you will get best performance by creating a lookup array. array_column() can be used to declare an array with vendor_id values as keys and prid values as values.
Because your $requestData has rows with the number of columns desired in the output, loop over the $requestData['vendor_id'] data and manually generate the desired rows of data in the result array.
Code: (Demo)
$insertData = [
['prid' => 4, 'vendor_id' => 1],
['prid' => 5, 'vendor_id' => 2],
];
$requestData = [
'vendor_id' => [1, 1, 2, 2],
'item' => [2, 3, 4, 5],
'qty' => [12, 13, 14, 15]
];
$insertLookup = array_column($insertData, 'prid', 'vendor_id');
$result = [];
foreach ($requestData['vendor_id'] as $index => $vendorId) {
$result[] = [
'prid' => $insertLookup[$vendorId],
'vendor_id' => $vendorId,
'item' => $requestData['item'][$index],
'qty' => $requestData['qty'][$index],
];
}
var_export($result);
Output:
array (
0 =>
array (
'prid' => 4,
'vendor_id' => 1,
'item' => 2,
'qty' => 12,
),
1 =>
array (
'prid' => 4,
'vendor_id' => 1,
'item' => 3,
'qty' => 13,
),
2 =>
array (
'prid' => 5,
'vendor_id' => 2,
'item' => 4,
'qty' => 14,
),
3 =>
array (
'prid' => 5,
'vendor_id' => 2,
'item' => 5,
'qty' => 15,
),
)

Answer 3

You can use the array_merge() function to merge arrays.
array_merge
$merged_array = array_merge($insertData, $requestData);