Simple php two-dimensional array multi-element sorting example

Php two-dimensional array multi-element sorting editor has introduced a lot, but this year I saw a little difference in this example, so I sorted it out for you, I hope this sorting algorithm can help you. Write the multi-element sorting of a two-dimensional array. the multi-element sorting is similar to the order... php two-dimensional array multi-element sorting editor has introduced a lot, but this year I saw a little difference in this example, so I sorted it out for you, I hope this sorting algorithm can help you.

Write a two-dimensional array of multi-element sorting. multi-element sorting is similar to order by sort and date in SQL. the following code considers performance issues and only involves two elements for sorting.

Code area:

 $ V) {$ key_count = count ($ old_arr)-1; // The number of the first element is equal, put the temporary array if ($ v [$ arr1 [0] ==$ old_arr [$ k-1] [$ arr1 [0] | empty ($ temp_array )) {$ temp_array [$ k] = $ v;} if ($ v [$ arr1 [0]! = $ Old_arr [$ k-1] [$ arr1 [0] &! Empty ($ temp_array) | $ key_count = $ k) {// add the latest element $ temp_array [$ k] = $ v; // when the array is greater than 1, sort if (count ($ temp_array)> 1) {if ($ key_count! = $ K) {// delete the last (not equal to the last element) unset ($ temp_array [$ k]);} // not the last or last, sort if ($ key_count! = $ K | $ v [$ arr1 [0] = $ old_arr [$ k-1] [$ arr1 [0]) {// sort the second element $ temp_array = array_sort ($ temp_array, $ arr2 [0], $ arr2 [1]);} // sort the sorted array, insert the original array to the position before sorting $ count = count ($ new_temp_array) = 0? 0: count ($ new_temp_array); foreach ($ temp_array as $ val_t) {$ new_temp_array [$ count] = $ val_t; $ count ++ ;} // empty the original array after writing the new array $ temp_array = array (); // add the latest element $ temp_array [$ k] = $ v ;}}return $ new_temp_array ;} // sort function array_sort ($ arr, $ keys, $ type = 'asc ') {$ keysvalue = $ new_array = array (); // Obtain the element value, generate a new array foreach ($ arr as $ k => $ v) {$ keysvalue [$ k] = $ v [$ keys];} // sort, the default value is if ($ type = 'asc ') {asort ($ keysvalue);} else {arsort ($ keysvalue);} reset ($ keysvalue ); $ count_s = 0; // restore key value foreach ($ keysvalue as $ k => $ v) {$ new_array [$ count_s] = $ arr [$ k]; $ count_s ++;} return $ new_array;} // call method: $ old_arr = array ('id' => 1, 'sort '=> 1, 'date' => '123'), array ('id' => 2, 'sort '=> 1, 'date' => '123 '), array ('id' => 3, 'sort '=> 2, 'date' => '123'),); $ arr1 = array ('sort ', 'desc'); $ arr2 = array ('date', 'desc'); $ newArr = multipleArraySort ($ old_arr, $ arr1, $ arr2); var_dump ($ newArr );

// Print the result: