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Sunday, December 18, 2011

Odesk PHP 5 test answers

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oDesk PHP 5 test answers
What is true regarding this code?
setcookie will return true
Question:
Which of the following is not a correct way of printing text in php5?
echo "Plain text";
Question:
Which of the following is not the correct way of starting a session?
session_initiate()
                                                                                                                      
Question:
Which of the following functions do you need to implement HTTP Basic Authentication?
None of the above
Question:
Which of the following Command Line Interface constant is not defined in the CLI SAPI?
STDPRT
Question:
Which of the following statements is correct with regard to final and abstract?
a. An abstract class cannot have final methods
Question:
Which composite data types are supported by php?
Array
Question:
The default value of register_globals in PHP is:
Off
Question:
Which of the following is not a valid PHP connection status?
 open
Question:
Choose the correct statement:
include() includes and evaluates a specific file


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

Question:
If the session_cache_expire() is not set, then by default the session cache will expire after:
3 hrs
Question:
What will be the output of the following script?
$count=50;
function Argument()
{
$count++;
echo $count;
}
Argument();
?>
 It will print 1
Question:
State whether True or False

Paamayim Nekudotayim operator allows access only to the static members of a class?
True
Question:
Which of the following statements is true with regard to comparisons in PHP5?
With (===) operator, object variables are identical if and only if they refer to the same instance of the same class.
Question:
Which of the following built-in function assist in checking if actually the function exists or not?


function_exists

 Question:
What will be the output of the following code?
$a = 0.0;
for ($i = 0; $i < a ="="">
1
Question:
What will be the output of the following code?
$i=4;
$j=30;
$k=0;
$k=$j++/$i++;
echo $i . " " . $j . " " . $k . " ";
5 31 7.5
Question:
Which of the following is a not a correct way of commenting in php?
/#PHP Comment
Question:
Following is a php code block:
$m=9;
$n=99;
$z=8;
$z=$n++/$m++ + --$z;
echo $z;
what will be the output?
18
Question:
Which of the following is the correct way of specifying default value?
function GetDiscount($Type = "Special") { . . . }
Question:
With reference to the following php script:
print 'Text Line1'
print 'Text Line2'
?>
What will be the output on running the script?
Error message will be printed

Question:
What will be the ouput of the following code?
for ($i = 0; $i < i ="="">
0134
Question:
Late PHP versions support remote file accessing for the functions:
include_once()
require_once()
both of them
Question:
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;
Both of them
Question:
Which of the following does not represent logical AND operator in PHP?
&amp
Question:
Which of the following is not true for a persistent connection?
These can't be converted to non-persistent connections
Question:
Which of the following are invalid data types in PHP?
char
Question:
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?
$ofc->getManager()->printName();
Question:                                                              
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?
 public function getName(){}
Question:
Which of the following variable declarations within a class is invalid in PHP5?
var $term =3;
Question:
What will be the output of following code?
$arr = "a";
$arr[0]="b";
echo $arr;
echo $arr[0];
bb
Question:
For the following code:
the output will be:
171
Question:
What is the result of the following expression?
5+2 * 4+6

Question:
What will be the output of following code?
$var = 1 + "-1.3e3";
echo $var;
-1299
Question:
What will be the output of following code?
$var1="a";
$$var1="b";
echo "$var1 $a";
a b
Question:What is the output of the following code?
$a = 500;
$b = 200;
echo $a % 2
* $b;
?>
0
Question:
What will be the ouput of the following code?
if (-1)
print "true";
else
print "false";
?>
true
Question:
What will be the output of the following code?
echo 12 . 6;
126
Question:
Consider the following sample code:
$x = 0xFFFE;
$y = 2;
$z = $x && $y;
What will be the value of $z?
1 
ORANGE IS THE ANSWERS