Returns the number (set & not-null) elements within an (sub)array.
Syntax
array_count_real(array $array, string $subKey = null): int {
Parameter
@param array $array A 1-dimensional (or 2-dimensional) numeric or associative array.
@param string|int|null $subKey Possibility to count the values of a 2-dimensional array.
Return
Returns the number of set & not-null values. If $array is not an array or empty 0 is returned.
Examples
Yet to come...
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