1$inventory = array(
2
3 array("type"=>"fruit", "price"=>3.50),
4 array("type"=>"milk", "price"=>2.90),
5 array("type"=>"pork", "price"=>5.43),
6
7);
8$price = array_column($inventory, 'price');
9array_multisort($price, SORT_DESC, $inventory);
1 $weight = [
2 'Pete' => 75,
3 'Benjamin' => 89,
4 'Jonathan' => 101
5 ];
6 ksort($weight);
1
2usort($array, function ($a, $b) {
3 return ($a['specific_key'] < $b['specific_key']) ? -1 : 1;
4});
5
1$inventory = [
2 ['price' => 10.99, 'product' => 'foo 1'],
3 ['price' => 5.99, 'product' => 'foo 2'],
4 ['price' => 100, 'product' => 'foo 3'],
5
6];
7
8$price = array_column($inventory, 'price');
9
10array_multisort($price, SORT_DESC, $inventory);
1To PHP sort array by key, you should use:
2 ksort() (for ascending order) or krsort() (for descending order).
3
4To PHP sort array by value, you will need functions:
5 asort() and arsort() (for ascending and descending orders).
1 function cmp($a, $b)
2 {
3 return strcmp($a->display_name, $b->display_name);
4 }
5
6 usort($blogusers, "cmp");
7
8 foreach ($blogusers as $bloguser)
9 {
10 ...