PHP 之二位数组根据某个字段排序封装

/**
 * @param $array
 * @param $keys
 * @param string $sort
 * @return array
 */
function arraySort($array, $keys, $sort = 'asc')
{
    $newArr = $valArr = array();
    foreach ($array as $key => $value) {
        $valArr[$key] = $value[$keys];
    }
    ($sort == 'asc') ? asort($valArr) : arsort($valArr);
    reset($valArr);
    foreach ($valArr as $key => $value) {
        $newArr[$key] = $array[$key];
    }
    return $newArr;
}