The method of taking the maximum and minimum value of two-dimensional group

This article mainly explains "the method of getting the maximum and minimum value of two-dimensional group". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Now let the editor to take you to learn the "two-dimensional group of maximum and minimum value of the method" it!

Function getArrayMax ($arr,$field)

{

$temp= []

Foreach ($arr as $k = > $v) {

$temp [] = $v [$field]

}

Return max ($temp); the maximum / / changed to return min ($temp) is the minimum

}

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