php - 如何将关联数组排序为替代的最大最小顺序？

Question

有谁知道如何将关联数组排序为交替的最大最小值？

IE

array("A"=>10, "B"=>2, "C"=>5, "D"=>1, "E"=>30, "F"=>1, "G"=>7)

应该变成：

array("E"=>30, "D"=>1, "A"=>10, "F"=>1, "G"=>7, "B"=>2, "C"=>5)

谢谢

Answer 1

根据您对此问题的先前版本的回答：

$myArray = array("A"=>10, "B"=>2, "C"=>5, "D"=>1, "E"=>30, "F"=>1, "G"=>7);
asort($myArray);
$myArrayKeys = array_keys($myArray);

$newArray = array();
while (!empty($myArray)) {
    $newArray[array_shift($myArrayKeys)] = array_shift($myArray);
    if (!empty($myArray))
        $newArray[array_pop($myArrayKeys)] = array_pop($myArray);
}
var_dump($newArray);

或者，如果你想要最大的第一：

$myArray = array("A"=>10, "B"=>2, "C"=>5, "D"=>1, "E"=>30, "F"=>1, "G"=>7);
asort($myArray);
$myArrayKeys = array_keys($myArray);

$newArray = array();
while (!empty($myArray)) {
    $newArray[array_pop($myArrayKeys)] = array_pop($myArray);
    if (!empty($myArray))
        $newArray[array_shift($myArrayKeys)] = array_shift($myArray);
}
var_dump($newArray);