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200-550 – 200-550

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Showing 10–12 of 15 questions

Question 10

What will the following code print out? $str = '✔ one of the following'; echo str_replace('✔', 'Check', $str);

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  • ○

    Check one of the following
  • ○

    one of the following
  • ○

    ✔ one of the following
Question 11

What is the output of the following code?

class a

{

public $val;

}

function renderVal (a $a)

{

if ($a) { echo $a->val;

}

} renderVal (null);

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  • ○

    A syntax error in the function declaration line
  • ○

    An error, because null is not an instance of 'a'
  • ○

    Nothing, because a null value is being passed to renderVal()
  • ○

    NULL
Question 12

Which of the following superglobals does not necessarily contain data from the client?

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  • ○

    $_POST
  • ○

    $_SESSION
  • ○

    $_GET
  • ○

    $_SERVER