Please note that this is an example of a two-dimension array. Now let's store this table into a multi-dimensional array Two-dimenional array php ![]() Here is a real-world example of data that can be stored inside a multidimensional array. PHP - Multidimensional ArraysĪ multi-dimensional array is an array of arrays and any contained array can contain a key/value pairs, or another array. Multidimensional arrays are a very useful concept while.Īlthouth you will normally find and use two or three levels of multidimensional arrays, you can have as many levels as you like or your memory usage allows you. allows the sort criteria be passed as a separate array (It is possible to use sort order and flags.A multidimensional array is the same as in any other programming language: an array containing one or multiple other arrays. it prepares the arrays (needed by array_multisort) for you uses PHP's array_multisort function for sorting Purpose: Sort a 2-dimensional array on some key(s) I would like to see the next code snippet to be added to $arr2 = array_msort ( $arr1, array( 'name' => SORT_DESC, 'cat' => SORT_ASC )) įoreach ( $array as $k => $row ) $sorted = array_orderby ( $data, 'volume', SORT_DESC, 'edition', SORT_ASC ) Ī more inuitive way of sorting multidimensional arrays using array_msort() in just one line, you don't have to divide the original array into per-column-arrays:Īrray( 'id' => 2, 'name' => 'aa', 'cat' => 'dd' ),Īrray( 'id' => 3, 'name' => 'bb', 'cat' => 'cc' ),Īrray( 'id' => 4, 'name' => 'bb', 'cat' => 'dd' ) Pass the array, followed by the column names and sort flags The sorted array is now in the return value of the function instead of being passed by reference. ![]() This does what example 3 does, except it takes care of creating those intermediate arrays for you before passing control on to array_multisort().Ĭall_user_func_array ( 'array_multisort', $args ) I came up with an easy way to sort database-style results. In other words, the sort is lexicographical. Only elementsĬorresponding to equivalent elements in previous arrays are compared. More arrays, optionally followed by sort order and flags. Or omitted entirely, in which case SORT_REGULAR is assumed. This argument can be swapped with array1_sort_order SORT_NATURAL to sort strings case-insensitively
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