Question ID 1
Choose the selection that best matches the following statements:PHP is a _____ scripting language based on the ____ engine. It is primarily used to
develop dynamic _____ content, although it can be used to generate ____ documents
(among others) as well.
• Dynamic, PHP, Database, HTML
• Embedded, Zend, HTML, XML
• Perl-based, PHP, Web, Static
• Embedded, Zend, Docbook, MySQL
• Zend-based, PHP, Image, HTML
• I don’t know
Question ID 2
Which of the following tags is the valid way to begin and end a PHP code block?• <% %>
• <? ?>
• <! !>
• <?php ?>
• I don’t know
Question ID 3
Which of the following is not valid PHP code?• $_10
• ${“MyVar”}
• &$something
• $10_somethings
• $aVaR
• I don’t know
Question ID 4
What is displayed when the following script is executed?<?php define(myvalue, "10"); $myarray[10] = "Dog"; $myarray[] = "Human"; $myarray['myvalue'] = "Cat"; $myarray["Dog"] = "Cat"; print "The value is: "; print $myarray[myvalue]."n"; ?>• The value is: Dog
• The value is: Cat
• The value is: Human
• The value is: 10
• Dog
• I don’t know
Question ID 5
What is the difference between print() and echo()?• print() can be used as part of an expression, while echo() can’t
• echo() can be used as part of an expression, while print() can’t
• echo() can be used in the CLI version of PHP, while print() can’t
• print() can be used in the CLI version of PHP, while echo() can’t
• There’s no difference: there are alias
• I don’t know
Question ID 6
Which language construct can best represent the following series of if conditionals?<?php
if($a == 'a') {
somefunction();
} else if ($a == 'b') {
anotherfunction();
} else if ($a == 'c') {
dosomething();
} else {
donothing();
}
?>
• A switch statement without a default case• A recursive function call
• A while statement
• It is the only representation of this logic
• A switch statement using a default case
• I don’t know
Question ID 7
What is the best way to iterate through the $myarray array, assuming you want to modify the value of each element as you do?<?php
$myarray = array ("My String",
"Another String",
"Hi, Mom!");
?>
• Using a for loop• Using a foreach loop
• Using a while loop
• Using a do…while loop
• There is no way to accomplish this goal
• I don’t know
Question ID 8
What is the value displayed when the following is executed? Assume that the code wasexecuted using the following URL:
testscript.php?c=25
<?php
function process($c, $d = 25)
{
global $e;
$retval = $c + $d - $_GET['c'] - $e;
return $retval;
}
$e = 10;
echo process(5);
?>
• 25• -5
• 10
• 5
• I don’t know
Question ID 9
Run-time inclusion of a PHP script is performed using the ________ construct, whilecompile-time inclusion of PHP scripts is performed using the _______ construct.
• include_once, include
• require, include
• require_once, include
• include, require
• All of the above are correct
• I don’t know
Question ID 10
How does the identity operator === compare two values?• It converts them to a common compatible data type and then compares the resulting values
• It returns True only if they are both of the same type and value
• If the two values are strings, it performs a lexical comparison
• It bases its comparison on the C strcmp function exclusively
• It converts both values to strings and compares them
• I don’t know
Question ID 11
How can a script come to a clean termination?• When exit() is called
• When the execution reaches the end of the current file
• When PHP crashes
• When Apache terminates because of a system problem
• I don’t know
Question ID 12
Which function does return the number of seconds elapsed since the 1st January 1970?• time()
• timestamp()
• mktime()
• microtime()
• I don’t know
Question ID 13
In which array are the cookies sent by the browser?• $COOKIES
• $HTTP_COOKIES
• $_COOKIE
• $HTTP_COOKIES_VARS
• I don’t know
Question ID 14
How to sort an array by key?• $a = ksort($a);
• ksort($a)
• $a = rsort($a);
• rsort($a);
• I don’t know
Question ID 15
How to define a constant in PHP?• set(‘MY_CONST’, 10);
• set(‘MY_CONST’=10);
• define(‘MY_CONST’, 10);
• const $my_const = 10;
• I don’t know
Question ID 16
What is PHP?• Page Helper Process
• Programming Home Pages
• PHP: Hypertext Preprocessor
• I don’t know
Question ID 17
How to get the length of an ANSI string using PHP?• strlen()
• strlength()
• length()
• substr()
• size()
• I don’t know
Question ID 18
How many times the following loop will be executed?<?php
for($i=0 ; $i<=3 ; $i++ ) { echo $i; }
?>
• 2• 3
• 4
• 0, there is a parse error
• I don’t know
Question ID 19
How to count the number of elements in an array using PHP?• size($a);
• count($a);
• countOf($a);
• length($a);
• I don’t know
Question ID 20
How to connect to a MySQL database in PHP?• connect_mysql(“localhost”);
• mysql_open(“localhost”);
• dbopen(“localhost”);
• mysql_connect(“localhost”);
• mysql_select_db();
• I don’t know
Question ID 21
All variables in PHP start with which symbol?• &
• $
• !
• _
• I don’t know
Question ID 22
How do you get information from a form that is submitted using the “get” method?• Request.QueryString;
• $_GET[];
• Request.Form;
• I don’t know
Question ID 23
When using the POST method, variables are displayed in the URL:• True
• False
• I don’t know
Question ID 24
In PHP you can use both single quotes ( ‘ ‘ ) and double quotes ( ” ” ) for strings:• True
• False
• I don’t know
Question ID 25
Include files must have the file extension “.inc”• True
• False
• I don’t know
Question ID 26
What is the correct way to create a function in PHP?• create myFunction()
• new_function myFunction()
• function myFunction()
• myFunction()
• I don’t know
Question ID 27
What is the correct way to add 1 to the $count variable?• $count =+1;
• ++count;
• $count++;
• count++;
• I don’t know
Question ID 28
What is a correct way to add a comment in PHP?• /*…*/
• <!–…–>
• *…*
• <comment>…</comment>
• I don’t know
Question ID 29
In PHP 5, MySQL support is enabled by default:• True
• False
• I don’t know
Question ID 30
What does SQL stand for?• Strong Question Language
• Structured Question Language
• Structured Query Language
• I don’t know
Question ID 31
Which SQL statement is used to extract data from a database?• EXTRACT
• OPEN
• GET
• SELECT
• I don’t know
Question ID 32
Which SQL statement is used to update data in a database?• SAVE
• MODIFY
• SAVE AS
• ALTER
• UPDATE
• I don’t know
Question ID 33
Which SQL statement is used to delete data from a database?• REMOVE
• DELETE
• COLLAPSE
• ALTER
• I don’t know
Question ID 34
Which SQL statement is used to insert new data in a database?• INSERT IN
• INSERT INTO
• INSERT NEW
• ALTER
• I don’t know
Question ID 35
With SQL, how do you select all the columns from a table named “Persons”?• SELECT * FROM Persons
• SELECT Persons
• SELECT [all] FROM Persons
• SELECT *.Persons
• I don’t know
Question ID 36
With SQL, how do you select all the records from a table named “Persons” where the value of the column “FirstName” starts with an “a”?• SELECT * FROM Persons WHERE FirstName LIKE ‘%a’
• SELECT * FROM Persons WHERE FirstName LIKE ‘a%’
• SELECT * FROM Persons WHERE FirstName=’%a%’
• SELECT * FROM Persons WHERE FirstName=’a’
• I don’t know
Question ID 37
Which SQL statement is used to return only different values?• SELECT UNIQUE
• SELECT DIFFERENT
• SELECT DISTINCT
• I don’t know
Question ID 38
Which SQL keyword is used to sort the result-set?• ORDER
• ORDER BY
• SORT
• SORT BY
• I don’t know
Question ID 39
With SQL, how can you insert a new record into the “Persons” table?• INSERT VALUES (‘Jimmy’, ‘Jackson’) INTO Persons
• INSERT INTO Persons VALUES (‘Jimmy’, ‘Jackson’)
• INSERT (‘Jimmy’, ‘Jackson’) INTO Persons
• I don’t know
Question ID 40
Inside which HTML element do we put the JavaScript?• <js>
• <scripting>
• <javascript>
• <script>
• I don’t know
Question ID 41
What is the correct syntax for referring to an external script called “xxx.js”?• <script href=”xxx.js”>
• <script>
• <script src=”xxx.js”>
• I don’t know
Question ID 42
An external JavaScript must contain the <script> tag• True
• False
• I don’t know
Question ID 43
How do you write “Hello World” in an alert box in JavaScript?• alertBox(“Hello World”)
• alertBox=”Hello World”
• msgBox(“Hello World”)
• alert(“Hello World”)
• I don’t know
Question ID 44
How do you create a javascript function?• function myFunction()
• function=myFunction()
• function:myFunction()
• I don’t know
Question ID 45
How do you call a function named “myFunction” in JavaScript?• call myFunction
• call myFunction()
• myFunction()
• function myFunction()
• I don’t know
Question ID 46
How do you write a conditional statement for executing some statements only if “i” is equal to 5?• if i==5 then
• if i=5
• if (i==5)
• if i=5 then
• I don’t know
Question ID 47
How do you write a conditional statement for executing some statements only if “i” is NOT equal to 5 (in Javascript) ?• if <>5
• if (i != 5)
• if (i <> 5)
• if =! 5 then
• I don’t know
Question ID 48
How do you round the number 7.25, to the nearest whole number?• Math.round(7.25)
• Math.rnd(7.25)
• round(7.25)
• rnd(7.25)
• I don’t know
Question ID 49
What combination of technologies gives AJAX its name?• ASP and XAML
• Asynchronous JavaScript and XML
• Autonomic Computing and DHTML
• ASP and XML
• I don’t know
Question ID 50
Can AJAX be synchronous?• True
• False
• I don’t know
Question ID 51
Which one of these technologies is NOT used in AJAX?• JSON
• XML
• DHTML
• DOM
• Flash
• I don’t know
Question ID 52
Ajax is a programming language• True
• False
• I don’t know
Question ID 53
The XMLHttpRequest object can be used on subdomain1.mysite.com to request a page located at subdomain2.mysite.com according to the specification.• True
• False
• I don’t know
Question ID 54
What will be displayed in the following case:- No content has been previously sent to the client
- You decide to use in your script the PHP header() function to send a 404 error code
- You write exit(); just after this function.
• A blank page with “HTTP/1.1 404 Not Found”
• A PHP error
• A blank page
• The normal page
• A customized error page
• I don’t know
Question ID 61
What is the effect of the “return” instruction when used in a included PHP script?• Return to the parent script while ignoring the rest of the included file
• A PHP error
• The script stops (same as exit());
• Nothing, it is ignored
• It depends if the file is included with include() or require()
• I don’t know
Question ID 62
Which function flush the output buffer and turn off output buffering?• ob_flush()
• ob_end_flush()
• ob_get_flush()
• ob_end_clean()
• I don’t know
Question ID 63
How are session variables accessed?• Through $_GET
• Through $_POST
• Through $_REQUEST
• Through $_SESSIONS
• None of the above
• I don’t know
Question ID 64
Which of these PHP functions or codes is used to send cookie to the client?• cookie()
• set_cookie()
• setcookie()
• $_COOKIE
• None of the above
• I don’t know
Question ID 65
If no expiration time is explicitly set for a cookie, what happens to it?• It expires right away
• It never expires
• It is not set
• It expires at the end of the user’s browser session
• It expires only if the script doesn’t create a server-side session
• I don’t know
Question ID 66
Consider the following form and subsequent script. What will the script print out if the user types the word “php” and “great” in the two text boxes respectively?<form action="index.php" method="post"> <input name="element[]"> <input name="element[]"> </form> <?php echo $_GET['element']; ?>• Nothing
• Array
• A notice
• phpgreat
• greatphp
• I don’t know
Question ID 67
In an HTTPS transaction, how are URLs and query strings passed from the browser to theweb server?
• They are passed in clear text, and the subsequent transaction is encrypted
• They are encrypted
• The URL is left in clear text, while the query string is encrypted
• The URL is encrypted, while the query string is passed in clear text
• To ensure its encryption, the query string is converted into a header and passed along with the POST information
• I don’t know
Question ID 60
The index.php page contains the following code:<?php
$a = 'a'.file_exists(__FILE__);
$a1 = 'wiki';
$a2 = 'kiwi';
echo ${$a};
?>
What is displayed on this page?• A blank page
• kiwi
• wiki
• A PHP error
• None of the above
• I don’t know
Question ID 69
What will the following script output?<?php
ob_start();
for ($i = 0; $i < 10; $i++) {
echo $i;
}
$output = ob_get_contents();
ob_end_clean();
echo $ouput;
?>
* 12345678910* 1234567890
* 0123456789
* Nothing
* A notice
* I don’t know
Question ID 70
By default, PHP stores session data in:• The filesystem
• A database
• Virtual memory
• Shared memory
• None of the above
• I don’t know
Question ID 71
Assuming that the client browser is never restarted, how long after the last access will a session “expire” and be subject to garbage collection?• After exactly 1,440 seconds
• After the number of seconds specified in the session.gc_maxlifetime INI setting
• It will never expire unless it is manually deleted
• It will only expire when the browser is restarted
• None of the above
• I don’t know
Question ID 72
Array values are keyed by ______ values (called indexed arrays) or using ______ values (called associative arrays). Of course, these key methods can be combined as well.• Float, string
• Positive number, negative number
• Even number, string
• String, Boolean
• Integer, string
• I don’t know
Question ID 73
Consider the following array, called $multi_array. How would the value cat be referenced within the $multi_array array?<?php
$multi_array = array("red",
"green",
42 => "blue",
"yellow" => array("apple",
9 => "pear",
"banana",
"orange" => array("dog",
"cat",
"iguana")
)
);
?>
• $multi_array['yellow']['apple'][0]• $multi_array['blue'][0]['orange'][1]
• $multi_array[3][3][2]
• $multi_array['yellow']['orange']['cat']
• $multi_array['yellow']['orange'][1]
• I don’t know
Question ID 74
What will the $array array contain at the end of the execution of the following script?<?php
$array = array ('1', '1');
foreach ($array as $k => $v) {
$v = 2;
}
?>
• array (’2′, ’2′)• array (’1′, ’1′)
• array (2, 2)
• array (Null, Null)
• array (1, 1)
• I don’t know
Question ID 75
Assume you would like to sort an array in ascending order by value while preserving keyassociations. Which of the following PHP sorting functions would you use?
• ksort()
• asort()
• krsort()
• sort()
• usort()
• I don’t know
Question ID 76
What will the following script output?<?php $array = array (3 => 'a', '1b' => 'b', 'c', 'd'); echo ($array[1]); ?>• 1
• b
• c
• A warning.
• A notice.
• I don’t know
Question ID 77
What elements will the following script output?<?php $array = array (true => 'a', 1 => 'b'); var_dump ($aray); ?>• 1 => ‘b’
• True => ‘a’, 1 => ‘b’
• 0 => ‘a’, 1 => ‘b’
• None
• It will output NULL
• I don’t know
Question ID 78
Which of the following will not combine strings $s1 and $s2 into a single string?• $s1 + $s2
• “{$s1}{$s2}”
• $s1.$s2
• implode(”, array($s1,$s2))
• All of the above combine the strings
• I don’t know
Question ID 79
Given a variable $email containing the string user@example.com, which of the following statements would extract the string example.com?• substr($email, strpos($email, “@”));
• strstr($email, “@”);
• strchr($email, “@”);
• substr($email, strpos($email, “@”)+1);
• strrpos($email, “@”);
• I don’t know
Question ID 80
Given a comma-separated list of values in a string, which function from the given list can create an array of each individual value with a single call?• strstr()
• Cannot be done with a single function
• extract()
• explode()
• strtok()
• I don’t know
Question ID 81
What will be the output of the following script?<?php $s = '12345'; $s[$s[1]] = '2'; echo $s; ?>• 12345
• 12245
• 22345
• 11345
• Array
• I don’t know
Question ID 82
What happens if you add a string to an integer using the + operator?• The interpreter outputs a type mismatch error
• The string is converted to a number and added to the integer
• The string is discarded and the integer is preserved
• The integer and string are concatenated together in a new string
• The integer is discarded and the string is preserved
• I don’t know
Question ID 83
What does the built-in delete function do?• It deletes a file
• It deletes a directory
• It unsets a variable
• It removes a database row
• This function does not exist!
• I don’t know
Question ID 84
Consider the following script. Which PHP5 function best approximates its behaviour?<?php
function my_funct ($file_name, $data)
{
$f = fopen ($file_name, 'w');
fwrite ($f, $data);
fclose ($f);
}
?>
• file_get_contents()• file_put_contents()
• There is no equivalent function in PHP
• file()
• fputs()
• I don’t know
Question ID 85
Which of the following definitions describes the time function?• It returns the number of seconds since the UNIX epoch
• It calculates the time elapsed since the UNIX epoch and expresses it as an integer number
• It returns the current time measured in the number of seconds since January 1, 1970 00:00:00 GMT
• All of the above
• I don’t know
Question ID 86
The date() function returns ______________.• An integer
• A floating-point number
• An array
• A string
• None of the above
• I don’t know
Question ID 87
What does an “inner join” construct do?• It joins two tables together into a third permanent table based on a common column
• It creates a result set based on the rows in common between two tables
• It creates a result set based on the rows based on one table
• It creates a result set by joining two tables together and taking all the rows in
common plus the rows belonging to one of the tables
• None of the above
• I don’t know
Question ID 88
Which of the following is true?• Indexing can speed up the insertion of new rows in a table
• A good indexing strategy helps prevent cross-site scripting attacks
• Indexes should be designed based on the database’s actual usage
• Deleting a row from a table causes its indexes to be dropped
• Indexes are necessary on numeric rows only
• I don’t know
Question ID 89
What does the DESC keyword do in the following query?SELECT *
FROM MY_TABLE
WHERE ID > 0
ORDER BY ID, NAME DESC
• It causes the dataset returned by the query to be sorted in descending order
• It causes rows with the same ID to be sorted by NAME in ascending order
• It causes rows with the same ID to be sorted by NAME in descending order
• It causes rows to be sorted by NAME first and then by ID
• It causes the result set to include a description of the NAME field
• I don’t know
Question ID 90
Which of the following correctly identify the requirement for a column to be part of the result set of a query that contains a GROUP BY clause?• The column must be indexed
• The column must be a unique key
• The column must contain an aggregate value and be included in the GROUP BY clause
• The column must be a primary key
• The column must not contain NULL values
• I don’t know
Question ID 91
Which of the following is the single most important technique that can help you make your PHP application secure from external intrusion?• Having strong encryption algorithms
• Protecting database passwords
• Using SSL whenever possible
• Validating all inputs
• Only using input from trusted sources
• I don’t know
Question ID 92
Although not necessarily foolproof, what of the following can help identify and prevent potential security risks in your code?• Being aware of potential security issues as documented in the PHP manual.
• Logging all circumstances in which your script data validation fails
• Keeping up to date with the latest versions of PHP, especially those that contain security fixes
• When using third-party PHP packages, being aware of any security holes found in them and keeping fixes up to date
• All of the above
• I don’t know
Question ID 93
When an error occurs on your web site, how should it be treated?• An error message should be displayed to the user with technical information regarding its apparent cause, so that the web master can address it
• The error should be logged, and a polite message indicating a server malfunction should be presented to the user
• An error message with technical information regarding the error should be displayed so that the user can send it to the webmaster and the error should be logged
• Errors should redirect the users to the home page, as to not indicate a malfunction
• None of the above
• I don’t know
Question ID 94
What does an opcode cache do?• It compiles scripts into binary objects to make them run faster
• It replaces the Zend Engine to provide a faster interpreter
• It caches a script’s output to improve its performance
• It improves performance by caching the intermediate code produced by the parser
• It caches a script in memory, thus eliminating the need for reloading it from disk at every iteration
• I don’t know
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