Returns the max-value of an (sub)array.
This basically wraps the PHP's function: max(...)
Syntax
array_max(array $array, string $subKey = null) int|float
Parameter
@param array $array A 1-dimensional (or 2-dimensional) numeric or associative array.
@param string|int|null $subKey Possibility to access the sub-values of a 2-dimensional array.
Return
Returns the maximum value of the (sub)array. If $array is not an array or empty NULL is returned.
Examples
Yet to come...
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