oDesk Test Answers All Solution: oDesk PHP 5 test answers 2013

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oDesk PHP 5 test answers 2013

Ques: Which composite data types are supported by php?

Ans: Array

Ques: The default value of register_globals in PHP is:

Ans: Off

Ques: Which of the following is not a valid PHP connection status?

Ans: open

Ques: Choose the correct statement:

Ans: include() includes and evaluates a specific file

require_once() includes and evaluates a specific file only if it has not been included before

Ques: If the session_cache_expire() is not set, then by default the session cache will expire after:

Ans: 3 hrs

Ques: What will be the output of the following script?
$count=50;

function Argument()

{

$count++;

echo $count;

}

Argument();

Ans: It will print 1

Ques: What is true regarding this code?

Ans: setcookie will return true

Ques: Which of the following is not a correct way of printing text in php5?

Ans: echo "Plain text";

Ques: Which of the following is not the correct way of starting a session?

Ans: session_initiate()

Ques: Which of the following functions do you need to implement HTTP Basic Authentication?

Ans: None of the above

Ques: Which of the following Command Line Interface constant is not defined in the CLI SAPI?

Ans: STDPRT

Ques: Which of the following statements is correct with regard to final and abstract?

Ans: a. An abstract class cannot have final methods

Ques: State whether True or False

Paamayim Nekudotayim operator allows access only to the static members of a class?

Ans: True

Ques: Which of the following statements is true with regard to comparisons in PHP5?

Ans: With (===) operator, object variables are identical if and only if they refer to the same instance of the same class.

Ques: Which of the following built-in function assist in checking if actually the function exists or not?
Ans: function_exists

Ques: What will be the output of the following code?

$a = 0.0;

for ($i = 0; $i < a ="="">

Ans: 1

Ques: What will be the output of the following code?
$i=4;

$j=30;

$k=0;

$k=$j++/$i++;

echo $i . " " . $j . " " . $k . " ";

Ans: 5 31 7.5

Ques: Which of the following is a not a correct way of commenting in php?

Ans: /#PHP Comment

Ques: Following is a php code block:

$m=9;

$n=99;

$z=8;

$z=$n++/$m++ + --$z;

echo $z;

what will be the output?

Ans: 18

Ques: Which of the following is the correct way of specifying default value?

Ans: function GetDiscount($Type = "Special") { . . . }

Ques: With reference to the following php script:

print 'Text Line1'

print 'Text Line2'

What will be the output on running the script?

Ans: Error message will be printed

Ques: What will be the ouput of the following code?

for ($i = 0; $i < i ="="">

0134

Ques: Late PHP versions support remote file accessing for the functions:

Ans: include_once()

require_once()

both of them

Ques: You have designed a user login form as follows:

User Name:

Password:

How can you access the username entered by the user in the 'Validate.php' webpage?

a. $var= $_POST['username'];

b. $var= $_REQUEST['username'];

c. import_request_variables('p', 'p_');

$var= $p_username;

Ans: Both of them

Ques: Which of the following does not represent logical AND operator in PHP?

Ans: &amp

Ques: Which of the following is not true for a persistent connection?

Ans: These can't be converted to non-persistent connections

Ques: Which of the following are invalid data types in PHP?

Ans: char

Ques: The Manager and Office classes are as follows:
class Manager{

function printName() {

echo "Manager";

}

class Office{

function getManager() {

return new Manager();

}

$ofc = new Office();

???

Which of the following should replace '???' to obtain the value of printName() function?

Ans: $ofc->getManager()->printName();

Ques: The classes are defined as follows:abstract class BaseCls{

protected abstract function getName();

}

class ChildCls extends BaseCls{

}

Which of the following implementations of getName() is invalid in ChildCls?

Ans: public function getName(){}

Ques: Which of the following variable declarations within a class is invalid in PHP5?

Ans: var $term =3;

Ques: What will be the output of following code?

$arr = "a";

$arr[0]="b";

echo $arr;

echo $arr[0];

Ans: bb

Ques: For the following code:

the output will be:

Ans: 171

Ques: What is the result of the following expression?
Ans: 5+2 * 4+6

Ques: What will be the output of following code?
$var = 1 + "-1.3e3";

echo $var;

Ans: -1299

Ques: What will be the output of following code?

$var1="a";

$$var1="b";

echo "$var1 $a";

Ans: a b

Ques: What is the output of the following code?

$a = 500;

$b = 200;

echo $a % 2

* $b;

Ans: 0

Ques: What will be the ouput of the following code?

if (-1)

print "true";

else

print "false";

Ans: true

Ques: What will be the output of the following code?

echo 126;

Ans: 126

Ques: Consider the following sample code:

$x = 0xFFFE;

$y = 2;

$z = $x && $y;

What will be the value of $z?

Ans: 1