Creating new multidimensional array from existing fours one dimensional arrays in PHP - php

Question

I have an arrays like:
$array1=array(1,2,3,4),
$array2=array("test1","test2","test3","test4"),
$array3=array("2014","2015","2014","2015"),
$array4=array("201","101","203","104")
Now I want to create a new multidimensional array $array4 with values like:
[0]=>{"1","test1","2014","201"}
[1]=>{"2","test2","2015","101"}
[2]=>{"3","test3","2014","203"}
[3]=>{"4","test4","2015","104"}

Answer 1

The code you need is given as an example in the documentation page of function array_map():
$output = array_map(NULL, $array1, $array2, $array3, $array4);
That's all!

Answer 2

try this function:
$array1=array(1,2,3,4);
$array2=array("test1","test2","test3","test4");
$array3=array("2014","2015","2014","2015");
$array4=array("201","101","203","104");
print_r(convert($array1, $array2, $array3, $array4));
function convert() {
$newArr = [];
$arrays = func_get_args();
for ($i = 0; $i < count($arrays);$i++) {
for ($k = 0; $k < count($arrays[$i]); $k++) {
$newArr[$k][$i] = $arrays[$i][$k];
}
}
return $newArr;
}

Answer 3

You can make use of array_map to achieve the desired result:
$merge = function() {
return func_get_args();
};
$result = array_map($merge, $array1, $array2, $array3, $array4);
var_dump($result)

Answer 4

It looks like a job for function array_column():
// Combine all the input arrays into a single 2-dimensional array
// Pass the combined array to a function that will return the list
// of its columns
$output = transpose(array($array1, $array2, $array3, $array4));
function transpose(array $array)
{
// Store the result here
$result = array();
// Get each column, put it into the result
foreach (array_keys($array[0]) as $key) {
$result[$key] = array_column($array, $key);
}
return $result;
}
Another solution that works the same but uses function array_reduce() to walk the array:
function transpose(array $array)
{
return array_reduce(
array_keys($array[0]),
function (array $carry, $key) use ($array) {
$carry[$key] = array_column($array, $key);
return $carry;
},
array()
);
}