How does PHP implement two-dimensional array sorting?

Two-dimensional arrays are often encountered in PHP development, but his sorting is not as easy as a one-dimensional array with built-in functions, (one-dimensional array sorting can refer to the other article "PHP array sorting function detailed summary"). The ordering of two-dimensional arrays requires that we write our own function processing, here Uncletoo for you to share a PHP two-dimensional array sorting function:

Code:

PHP code

Functionarray_sort ($arr, $keys, $type = ' asc ') {  $keysvalue = $new _array= Array ();  foreach ($arras $k=> $v) {      $keysvalue [$k] = $v [$keys];  }  if ($type = = ' asc ') {      asort ($keysvalue);  } else{      Arsort ($keysvalue);  }  Reset ($keysvalue);  foreach ($keysvalueas $k=> $v) {      $new _array[$k] = $arr [$k];  }  Return$new_array;  }

The three parameter descriptions of the function:

$arr: the array to sort

$keys: Specifies which key value to sort by

$type: Sort by, ascending or descending, default to Ascending

This PHP function can be implemented to sort a two-dimensional array according to the specified key value and return the sorted array.

Invocation Example:

PHP code

$newArray = Array_sort ($array, ' price ');

