Share a simple method for sorting two-dimensional arrays. how can this problem be solved?

PHPcodefunctionarray_sort ($ arr, $ field, $ by = SORT_ASC) {foreach ($ arras $ v) {$ r [] = sharing a simple method for sorting two-dimensional arrays

PHP code

  Function array_sort ($ arr, $ field, $ by = SORT_ASC) {foreach ($ arr as $ v) {$ r [] = $ v [$ field];} array_multisort ($ r, $ by, $ arr); return $ arr;} $ array = array ('name' => 'phone ', 'brand' => 'Nokia ', 'price' => 3000), array ('name' => 'laptop', 'brand' => 'Lenovo ', 'price' => 4000),); $ a = array_sort ($ array, 'price', SORT_DESC); echo"
";    print_r($a);  

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This is always the case.
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It is better not to encapsulate the array_multisort directly.
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Php has the function of automatic sorting.
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Do I need to encapsulate another 3D array?
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Discussion

Do I need to encapsulate another 3D array?