Which of the following function declarations is correct in PHP? a) function soma(int $a, int $b){return $a+$b;} b) function soma($a, $b){return $...

Which of the following function declarations is correct in PHP?


a) function soma(int $a, int $b){return $a+$b;}
b) function soma($a, $b){return $a+$b;}
c) function soma(int $a, $b){return $a+$b;}
d) function soma($a: int, $b: int){return $a+$b;}
e) function Integer soma($a: Integer, $b: Integer){return $a+$b;}