PHP files have a default file extension of..

What will be the output of the following code?function track() { static $count = 0; $count++; echo $count; } track(); track(); track();

What will be the output of the following PHP code?$num = 10; echo 'What is her age? n She is $num years old';

What will be the output of the following PHP code?$total = "25 students"; $more = 10; $total = $total + $more; echo "$total";

What will be the output of the following PHP code?$score = 1234; $scoreboard = (array) $score; echo $scoreboard[0];

Which of the following PHP statements will output Hello World on the screen?echo (“Hello World”);print (“Hello World”);printf (“Hello World”);sprintf (“Hello World”);

What will be the output of the following php code? $num = 1; $num1 = 2; print $num . "+". $num1; ?>

We can use _________ to comment a single line? /?//#/* */

Which of the following php statement/statements will store 111 in variable num?int $num = 111;int mum = 111;$num = 111;111 = $num;

What will be the output of the following code? $foo = 'Bob'; $bar = &$foo; $bar = "My name is $bar"; echo $bar; echo $foo; ?>