A PHP script should start with ___ and end with ___:

A PHP script should start with ___ and end with ___:

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1) What will be the output of the following php code?

 $num  = 1;
 $num1 = 2;
 print $num . "+". $num1;
 ?>

2) Which of the following PHP statements will output Hello World on the screen?

1. echo (“Hello World”);
2. print (“Hello World”);
3. printf (“Hello World”);
4. sprintf (“Hello World”);

3) What will be the output of the following PHP code?

$total = "25 students";
 $more = 10;
 $total = $total + $more;
 echo "$total";

4) What will be the output of the following PHP code?

$num = 10;
 echo 'What is her age? n She is $num years old';

5) PHP files have a default file extension of..