使用array_search多维数组

Question

在一维数组中使用array_search很简单

$array = array("apple", "banana", "cherry");
$searchValue = "cherry";
$key = array_search($searchValue, $array);

echo $key;

但是多维数组呢？

    #RaceRecord

    [CarID] [ColorID] [Position]
[0]    1        1         3
[1]    2        1         1
[2]    3        2         4
[3]    4        2         2
[4]    5        3         5

例如，我想获取位置为1的汽车的索引。我该怎么做？

Answer 1

function find_car_with_position($cars, $position) {
    foreach($cars as $index => $car) {
        if($car['Position'] == $position) return $index;
    }
    return FALSE;
}