从没有循环的多维数组中搜索最近的值

Question

I have a large number of array with multidimensional array like:

I run a simple simulation for 5000 times by Years. Example : for 70 years, I need to get 5000 data from loop. so I have 70 array each have 5000 array.

[0] => Array
        (
            [0] => 1787705
            [1] => 2019202
            [2] => 2293516
            [3] => 2525528
            [4] => 2771665
            ....
            [4999] => 82047445
        )

 [1] => Array
        (
            [0] => 1723480
            [1] => 1747268
            [2] => 1951914
            [3] => 2218200
             ........
            [4999] => 44638801
.......
[70] => Array
        (
            [0] => 1723480
            [1] => 1747268
            [2] => 1951914
            [3] => 2218200
             ........
            [4999] => 44638801

Now I want to search Closest or nearest value form a single value.

Like I need to search nearest value of 1747268 from that multidimensional array but not with loop, because it take already much time in previous loop, so How it is possible to find nearest value without loop.

Answer 1

If your data isn't sorted, nor stored in a database, you'll have to do at least one loop. That's not the answer you asked for, but that's it.