CSC 202 Pre Test

Which is the right way of declaring a variable in PHP?

i) $3hello

ii) $_hello

iii) $this

iv) $This

What will be the output of the following code?

   function track() {

   static $count = 0;

   $count++;

   echo $count;

   }

   track();

   track();

   track();

   ?>

Which of the below statements is equivalent to $add += $add ?

If $a = 12 what will be returned when ($a == 12) ? 5 : 1 is executed?

Which of the conditional statements is/are supported by PHP?

i) if statements

ii) if-else statements

iii) if-elseif statements

iv) switch statements

What will be the output of the following PHP code?

   $a = 5;

   $b = 5;

   echo ($a === $b);

   ?>

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

i) echo (“Hello World”);

ii) print (“Hello World”);

iii) printf (“Hello World”);

iv) sprintf (“Hello World”);

What will be the output of the following PHP code ?

$i = "";

while ($i)

{  

   print "hi";

}

while($i < 8)

   $i++;

print "hello";

?>

What will be the output of the following PHP code?

   $user = array("Ashley", "Bale", "Shrek", "Blank");

   for ($x=0; $x < count($user); $x++)​{

       if ($user[$x] == "Shrek") continue;

           printf ($user[$x]);

   }

   ?>

Which type of function call is used in line 8?

   function calc($price, $tax)​

   {

       $total = $price + $tax;

   }

   $pricetag = 15;

   $taxtag = 3;

   calc($pricetag, $taxtag);​

   ?>

What will be the output of the following PHP code?

   $team = "arsenal";

   switch ($team) {

   case "manu":

       echo "I love man u";

   case "arsenal":

       echo "I love arsenal";

   case "manc":

       echo "I love manc"; }

   ?>

What will be the output of the following PHP code?

   $score = 1234;

   $scoreboard = (array) $score;

   echo $scoreboard[0];

   ?>

What will be the output of the following PHP code?

   $a = "clue";

   $a .= "get";

   echo "$a";

   ?>

Which of the looping statements is/are supported by PHP?

i) for loop

ii) while loop

iii) do-while loop

iv) foreach loop

What will be the output of the following code?

   $foo = 'Bob';              

   $bar = &$foo;              

   $bar = "My name is $bar";  

   echo $bar;

   echo $foo;

   ?>