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  1. The arguments in a function are evaluated from .....

  2. A.

     left to right

    B.

     right to left

    C.

     sometimes left to right and sometimes right to left

    D.

     Always right to left

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  3. strlen() returns the length of the string on success and . . . . if the string is empty.

  4. A.

     -1

    B.

     NULL

    C.

     Garbage value

    D.

     0

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  5. Which one of the following is the right way of defining a function in PHP?

  6. A.

     function { function body }

    B.

     data type functionName(parameters) { function body }

    C.

     functionName(parameters) { function body }

    D.

     function fumctionName(parameters) { function body }

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  7. Type Hinting was introduced in which version of PHP?

  8. A.

     PHP 4

    B.

     PHP 5

    C.

     PHP 5.3

    D.

     PHP 6

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  9. What will happen in this function call?

    <?php

    function calc($price, $tax)

    {

    $total = $price + $tax;

    }

    $pricetag = 15;

    $taxtag = 3;

    calc($pricetag, $taxtag);

    ?>

  10. A.

     Call By Value

    B.

     Call By Reference

    C.

     Default Argument Value

    D.

     Type Hinting

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  11. What will be the output of the following PHP code?

    <?php

    function calc($price, $tax="")

    {

    $total = $price + ($price * $tax);

    echo "$total";

    }

    calc(42);

    ?>

  12. A.

     Error

    B.

     0

    C.

     42

    D.

     84

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  13. Which of the following are valid function names? 1. function() 2. €() 3. .function() 4. $function()

  14. A.

     Only 2

    B.

     None of the mentioned

    C.

     All of the mentioned

    D.

     3 and 4

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  15. What will be the output of the following PHP code?

    <?php

    function a()

    {

    function b()

    {

    echo 'I am b';

    }

    echo 'I am a';

    }

    a();

    a();

    ?>

  16. A.

     I am b

    B.

     I am bI am a

    C.

     Error

    D.

     I am a Error

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  17. What will be the output of the following PHP code?

    <?php

    function a()

    {

    function b()

    {

    echo 'I am b';

    }

    echo 'I am a';

    }

    b();

    a();

    ?>

  18. A.

     I am b

    B.

     I am bI am a

    C.

     Error

    D.

     I am a Error

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  19. What will be the output of the following PHP code?

    <?php

    $op2 = "blabla";

    function foo($op1)

    {

    echo $op1;

    echo $op2;

    }

    foo("hello");

    ?>

  20. A.

     helloblabla

    B.

     Error

    C.

     hello

    D.

     helloblablablabla

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