PHP reorder multidimensional array based on single dimensional array - php

Question

multidimensional array
Array
(
[0] => Array
(
[ID] => 5068
[Item] => 2737
[Unit] => 15
)
[1] => Array
(
[ID] => 5067
[Item] => 2737
[Unit] => 13
)
)
single dimensional array
Array (
[0] => 11
[1] => 13
[2] => 15
)
Expected output:
Array
(
[0] => Array
(
[ID] => 5067
[Item] => 2737
[Unit] => 13
)
[1] => Array
(
[ID] => 5068
[Item] => 2737
[Unit] => 15
)
)
It not necessary that single dimensional array must be in ASC/DESC order. I want to reorder multidimensional array according to single dimensional array based on unit value. How can I achieve this?

Answer 1

Maybe something like this would work?
$multiDimArray = [
0 => [
'ID' => 5068,
'Item' => 2737,
'Unit' => 15
],
1 => [
'ID' => 5067,
'Item' => 2737,
'Unit' => 13
]
];
$singleDim = [
11,13,15
];
usort($multiDimArray,function($a,$b){
global $singleDim;
return ($singleDim[0] >= $a['Unit']) ? -1 :1;
});
print_r($multiDimArray);
there's something in back of my head that tells me I'm missing something. But feel free to give it a go.

Answer 2

Assuming that the values in the single array all map to a value in Unit, you could loop the single dimensional array and then loop the values in the multidimensional array.
In the inner loop use in_array to check if the value from the single dimensional array occurs in the multidimensional array. If it does, you could for example add it to a new array.
$result = [];
foreach ($singleDimension as $sm) {
foreach ($multiDimensional as $md) {
if (in_array($sm, $md)) {
$result[] = $md;
}
}
}
Demo