PHP Online Test

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

<?php
$a = 12;
--$a;
echo $a++;
?>

2. How many functions does PHP offer for searching strings using POSIX style regular expression?

3. Which logging option's description is if an error occurs when writing to the syslog, send output to the system console?

4. What will be the output of the following code? (If say date is 22/06/2013.)

    <?php
    echo "Today is ".date("F d, Y");
    ?>

5. What is the return type of session_set_save_handler() function?

6. UML stands for?

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

<?php
$x;
echo "$x";
?>

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

<?php
for ($i = 0; $i < 3; $i++)
{
    for($j = $i; $j > 0; $j--)
        print " ";
    for($k = $j; $k < 3; $k++)
        print "*";
	print "\n";  
}
?>

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

<?php
echo "This is <i>India</i>";
?>

10. Which variable is used to collect form data sent with both the GET and POST methods?

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

<?php
$a = 10;
echo ++$a;
echo $a++;
echo $a;
echo ++$a;
?>

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

<?php 
$x = 75;
$y = 25; 
function addition()
{
    $GLOBALS['z'] = $GLOBALS['x'] + $GLOBALS['y'];
}
addition();
echo $z;
?>

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

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

14. How many of the following can be contained in constants?

i) boolean
ii) integer
iii) float
iv)  string

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

<?php
$x = 4;
$y = 3;
function fun($x = 3, $y = 4)
{
    $z = $x+$y/$y+$x;
    echo "$z";
} 
echo $x;
echo $y;
echo $z; 
fun($x, $y);
?>

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

    
<?php
    echo stripos("I love php, I love php too!","PHP");
?>

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

<?php
$y = 2;
$w = 4;
$y *= $w /= $y;
echo $y, $w;
?>

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

    <?php
    $states = array("Karnataka" => array
    ("population" => "11,35,000", "capital" => "Bangalore"),
    "Tamil Nadu" => array( "population" => "17,90,000",
    "capital" => "Chennai") );
    echo $states["Karnataka"]["population"];
    ?>

19. The class from which the child class inherits is called ________

i) Child class
ii) Parent class
iii) Super class
iv) Base class

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

    <?php
    $line = "You like dogs. I hate dogs. We should marry.";
    $sen = preg_split('/\./', $line);
    print_r($sen);
    ?>
    

21. Which function is used to erase all session variables stored in the current session?

22. If the diamond is filled it depicts which relationship?

23. POSIX implementation was deprecated in which version of PHP?

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

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

<?php
$a = 2;
if ($a-- - --$a - $a)
    print "hello";
else
    print "hi";
?>

26. Prior to which version of PHP did constructors took the name of the enclosing class.

27. Which version added the method getPrevious()?

28. Which one of the following statements should be used to include a file?

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

<?php
function start($string)
{
    if ($string < 45)
        return 20;
    else
        return 40;
}
$t = start(90);
if ($t < 20)
{
    echo "Have a good day!";
}
else
{
    echo "Have a good night!";
}
?>

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

<?php
$a  =  '12345';
echo "qwe$arty";
?>

31. Which function effectively deletes all sessions that have expired?

32. Which version of PHP introduced Try/catch Exception?

33. Output:

    namespace main;
    com\getinstance\util\Debug::helloWorld()
PHP Fatal error: Class 'main\com\getinstance\util\Debug' not found in ...

Using which one of the following PHP lines will the error be removed?

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

<?php
$i = 0
while ($i < 3)
{
    $i++;
}
print $i;
?>

35. Which of the following is/are true for an abstract class?
i) Abstract classes in PHP are declared with the help of abstract keyword.
ii) A class is declared abstract by using the keyword implements.
iii) It is a class that really isn’t supposed to ever be instantiated but instead serves as a base class.
iv) Attempting to instantiate an abstract class results in an error.

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

<?php
$i = 0;
for ($i)
{
    print $i;
}
?>

37. The developers of PHP deprecated the safe mode feature as of which PHP version.

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

<?php
$a = "2";
switch ($a)
{
case 1:
    print "hi";
case 2:
    print "hello";
    break;
default:
    print "hi1";
}
?>

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

<?php
$var1 = 0;
$var1 = $var1++ + 5; 
echo $var1; 
?>

40. Which version introduced the function error_get_last()?

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

<?php
$a = 2;
if ($a-- - --$a - $a)
    print "hello";
else
    print "hi";
?>

42. At least how many abstract methods must an abstract class contain?

43. To process the file, you need to break the array from $_FILES into individual values. You can do this using the ________ function.

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

<?php
$number = range(0, 5);
print_r ($number);
?>

45. How many constants does the DateTime class have?

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

<?php
echo $red;
?>

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

<?php
$a = "$winner";
$b = "\\$looser";
echo $a, $b;
?>

48. What will be the value of $a and $b after the function call in the following PHP code?

    <?php
    function doSomething( &$arg ) {
        $return = $arg;
        $arg += 1;
        return $return;	
    }
    $a = 3;
    $b = doSomething( $a );
    ?>
        

49. Which one of the following method is used to retrieve the number of rows affected by an INSERT, UPDATE, or DELETE query?

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

<?php
$user = array("Ashley", "Bale", "Shrek", "Blank");
for ($x = 0; $x < count($user); $x) 
{
    if ($user[$x++] == "Shrek") 
	    continue;
    printf ($user[$x]); 
}
?>