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

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

3) Which of the following is/are a PHP code editor?

4) Which version of PHP introduced Try/catch Exception?

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5) We can use _________ to comment a single line?

1. /?
2. //
3. #
4. /* */

6) Which of the following php statement/statements will store 111 in variable num?

1. int $num = 111;
2. int mum = 111;
3. $num = 111;
4. 111 = $num;

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

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

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

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

9) Which of following variables can be assigned a value to it?

1. $3hello
2. $_hello
3. $this
4. $This

10) What will be the output of the following code?

  $foo = 'Bob';
 $bar = &$foo;
         $bar = "My name is $bar";
 echo $bar;
 echo $foo;
 ?>

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