composer require renzhifan/arr
$arr = [
'a' => ['a' => 1],
'b' => ['a' => 2],
'c' => ['a' => 3],
'd' => ['a' => 4],
];
$sortArr=\Renzhifan\Arr\Arr::arraySort($arr, 'a', 'asc');
$timeRange=\Renzhifan\Arr\Arr::getTimeRange(20200121, 20200321, 'Y-m-d');
$randStr=\Renzhifan\Arr\Arr::getRandStr(9);
$reverseStr=\Renzhifan\Arr\Arr::reverseStr("你好啊");
$array = array(1, 1, 1, 54, 3, 4, 3, 4, 3, 14, 3, 4, 3, 7, 8, 9, 12, 45, 66, 5, 7, 8, 9, 2, 45, 3);
list($key, $count) = \Renzhifan\Arr\Arr::getMaxCountValue($array);
echo "数组中数字{$key}重复次数最多,为:{$count}次";
$arr = [11, 22, 33, 44, 55, 66, 77];
// 输出:[77,66,55,44,33,22,11]
echo json_encode(\Renzhifan\Arr\Arr::reverseArray($arr));