php - 使用字符串设置当前数组

Question

如果$point是333（例如），我希望current($ids)是444：

$ids = array(111, 222, 333, 444);
$point = 333;

如果$point是444，current($ids)是111等等。

---

我有这段代码，但我正在寻找更简单的东西：

$ids = array(111, 222, 333, 444, 555);
$point = array_search(555, $ids);

while(key($ids) != $point) {
    next($ids);
}

$point = next($ids);

if($point == NULL) {
    $point = reset($ids);
}

echo $point;

Answer 1

找不到下一个时重置数组

while(key($ids) != $point) {
    if (next($ids) === false) reset($ids);
}

Answer 2

while(key($ids) != $point) {
    next($ids);
}

$toEcho = next($ids);
if (!$toEcho) {
    $toEcho = reset($ids);
}