1.What is the default value for the "max_execution_time" setting when running PHP as a CLI SAPI ?

Whatever is set as the value for "max_execution_time" in php.ini

0 (Zero) which stands for infinite

There is no "max_execution_time" setting if running PHP as a CLI SAPI

2.Considering the code below ...

  
    <?php 
        
    class AppException extends Exception
    {
      function __toString()
      {
        return "Your code has just thrown an exception: {$this->message}\n";
      }
    }

    class Students
    {
      public $first_name;
      public $last_name;

      public function __construct($first_name, $last_name)
      {
        if(empty($first_name))
        {
          throw new AppException('First Name is required', 1);
        }

        if(empty($last_name))
        {
          throw new AppException('Last Name is required', 2);
        }
      }
    }

    try {
     new Students('', ''); 
    } catch (Exception $e) {
      echo $e;
    }
  

... which of these statements are correct ?

The catch (Exception $e) statement is wrong because it accepts an instance of the Exception class as the parameter. It should use an instance of the AppException class instead.

The __toString() method can't be overwritten in a child class because the methods in the Exception class are all final but for the constructor

The magic __toString() method will be invoked automatically when the code enters the catch() statement and the custom exception message will be printed

3.What is the output of the code below ?

<?php 
  $a = array();
  $a[0] = 1;
  unset($a[0]);
  echo ($a != null) ? 'True' : 'False';

True

False

Parse Error

4.How do you access standard I/O and error streams ?

Use stdin(), stdout() and stderr() functions

PHP::STDIN, PHP::STDOUT and PHP::STDERR class constants

Use PHP::stdin(), PHP::stdout() and PHP::stderr() class functions

STDIN, STDOUT and STDERR constants

5.Which of the following functions could be used to break a string into an array?

array_split()

split()

string_split()

preg_match_all()

explode()

6.What is the output of the following code block? $array = array(1 => 0, 2, 3, 4); array_splice($array, 3, count($array), array_merge(array('x'), array_slice($array, 3))); var_dump($array);

1 => 1, 2 => 2, 3 => x, 4 => 4

0 => 1, 2 => 2, 3 => 3, 4 => 4, x => 3

0 => 0, 1 => 2, 2 => 3, 3 => x, 4 => 4

0 => x, 1 => 0, 2 => 1, 3 => 2, 4 => 3

1 => 1, 3 => x, 2 => 2, 4 => 4

7.Which of the following functions are used with the internal array pointer to accomplish an action?

key

forward

prev

current

next

8.Given the following array: $array = array(1,1,2,3,4,4,5,6,6,6,6,3,2,2,2); The fastest way to determine the total number a particular value appears in the array is to use which function?

array_total_values

array_count_values

A foreach loop

count

a for loop

9.The ____ construct is particularly useful to assign your own variable names to values within an array.

array_get_variables

current

each

import_variables

list

10.What is the output of the following PHP code? define("FOO", 10); $array = [10 => FOO,"FOO" => 20]; print $array[$array[FOO]] * $array["FOO"];

FOO

100

200

20

10

11.Transactions are used to...

guarantee high performance

secure data consistency

secure access to the database

reduce the database server overhead

reduce code size in PHP

12.What would go in place of ?????? below to make this script execute without a fatal error? $a = 1; $b = 0; /* ?????? */ $c = $a / $b;

quit();

die();

stop();

__halt_compiler();

exit();

13.When checking to see if two variables contain the same instance of an object, which of the following comparisons should be used?

if($obj1->equals($obj2) && ($obj1 instanceof $obj2))

if($obj1->equals($obj2))

if($obj1 instanceof $obj2)

if($obj1 === $obj2)

14.In PHP 5 you can use the ______ operator to ensure that an object is of a particular type. You can also use _______ in the function declaration.

instanceof, is_a

instanceof, type-hinting

type, instanceof

===, type-hinting

===, is_a

15.Type-hinting and the instanceof keyword can be used to check what types of things about variables?

If a particular child class extends from it

If they are an instance of a particular interface

If they are an abstract class

If they have a particular parent class

If they are an instance of a particular class

16.The _______ method will be called automatically when an object is represented as a string.

getString()

__get()

__value()

__toString()

__getString()

17.Which php.ini directive should be disabled to prevent the execution of a remote PHP script via an include or require construct?

You cannot disable remote PHP script execution

curl.enabled

allow_remote_url

allow_url_fopen

allow_require

18.Consider the following code: header("Location: {$_GET['url']}\"); Which of the following values of $_GET['url'] would cause session fixation?

Session Fixation is not possible with this code snippet

http://www.zend.com/?PHPSESSID=123

PHPSESSID%611243

Set-Cookie%3A+PHPSESSID%611234

http%3A%2F%2Fwww.zend.com%2F%0D%0ASet-Cookie%3A+PHPSESSID%611234

19.Which of the following are not valid ways to embed a variable into a string?

$a = "Value: $value->getValue()";

$a = "Value: {$value}";

$a = 'Value: $value';

$a = "Value: $value";

$a = "Value: {$value['val']}";

20.Given the two values below, which of the following possibilities will print 10 foos20 bars? $var1 = "10 foos"; $var2 = "20 bars"; print ???????;

implode("", array($var1,$var2));

$var1 . $var2

$var1 + $var2

All of the above

None of the above

21.Which of the following is the best way to split a string on the "-=-" pattern?

They all are equally proper methods

str_split($string, strpos($string, "-=-"))

preg_split("-=-", $string);

explode("-=-", $string);

22.Which string does the following PCRE regular expression match? $regex = "/^([a-z]{5})[1-5]+([a-z]+)/";

Hello34262343goodbye'

frank12345abc

hello34212343goodbye

abcdefghi12345abc

None of the above

23.Which PCRE regular expression will match the string PhP5-rocks

/^[hp1-5]*\-.*/i

/[hp1-5]*\-.?/

/[hp][1-5]*\-.*/

/[PhP]{3}[1-5]{2,3}\-.*$/

/[a-z1-5\-]*/

24.If regular expressions must be used, in general which type of regular expression functions available to PHP is preferred for performance reasons?

strtok() using regular expressions

preg_* regular expression functions

parse_str() using regular expressions

strregex* regular expression functions

ereg* regular expression functions

25.If you would like to store your session in the database, you would do which of the following?

It requires a custom PHP extension to change the session handler

Implement the session_set_save_handler() function

Create functions for each session handling step and use session_set_save_handler() to override PHP's internal settings

Configure the session.save_handler INI directive to your session class

26.When uploading a file using HTTP, which variable can be used to locate the file on PHP's local filesystem?

$_FILES['fieldname']['tmp_name']

$_FILES['fieldname']

$_FILES['fieldname'][0]['filename']

$_FILES['fieldname']['filename']

None of the above

27.Setting a cookie on the client in PHP 5 can be best accomplished by:

Use the add_cookie() function

Use the setcookie() function

Use the the apache_send_header() function

Setting a variable in the $_COOKIE superglobal

28.One can ensure that headers can always be sent from a PHP script by doing what?

Enable header buffering in PHP 5

Set the header.force INI directive to true

Enable output buffering in PHP 5

There is no way to ensure that headers can always be set, they must always be checked

None of the above

29.Which of the following is not a valid fopen() access mode:

b

x

a

w

r+

30.Which functions would be needed to translate the following string: I love PHP 5 to the following? 5 PHP EVOL I

mirror()

strtoupper()

toupper()

str_reverse()

strrev()