php - Find the second highest variable in array -


i find second highest variable in array.

for example if have:

$cookies = array(                 "chocolate" => "20",                 "vanilla" => "14",                 "strawberry" => "18",                 "raspberry" => "19",                 "bluebery" => "29" );

i can use max($cookies) find highest variable, "bluebery" => "29".

but how find second highest? "chocolate" => "20"

sort , second item easiest way:

arsort($cookies); $keys = array_keys($cookies);  echo $keys[1]; // chocolate echo $cookies[$keys[1]]; // 20

if want more efficient way, can manually, keeping track of both highest , second-highest items @ same time:

function secondmax($arr) {     $max = $second = 0;     $maxkey = $secondkey = null;      foreach($arr $key => $value) {         if($value > $max) {             $second = $max;             $secondkey = $maxkey;             $max = $value;             $maxkey = $key;         } elseif($value > $second) {             $second = $value;             $secondkey = $key;         }     }      return array($secondkey, $second); }

usage:

$second = secondmax($cookies); echo "{$second[0]} => {$second[1]}"; // chocolate => 20

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