What will be the output of below mentioned PHP code?< ?php$arr = array(5 => 1, 12 => 2);$arr[] = 56;$arr["x"] = 42;unset($arr);echo var_dump($arr);? >Select one:a.42b.56c.NULLd.x=42

What will be printed by the below code?$a = 1;{$a = 2;}echo $a;Select one:a.1b.2c.Bothd.None

What will be the output of the following PHP code?< ?php$hello = "Hello World";$bye = "Bye";echo $hello;"$bye";?>

What will be the output of the following PHP code?

What will be the output of the following PHP code?< ?php$a = "clue";$a .= "get";echo "$a";?>

What will be the output of the following PHP code?<?phpdefine("GREETING", "PHP is a scripting language");echo $GREETING;?>Group of answer choicesno output$GREETINGGREETINGPHP is a scripting language