What will be the output of the following PHP code ?
<?php $i = 5;
while (--$i > 0){ $i++;
print $i;
print hello;
} ?>
while (--$i > 0){ $i++;
print $i;
print hello;
} ?>
4hello4hello4hello4hello4hello…..infinite
5hello5hello5hello5hello5hello…..infinite
no output
error
Correct Answer :
A. 4hello4hello4hello4hello4hello…..infinite
i is decremented in the first while execution and then continuously incremented back.
Related Questions
Which one of the following function is useful for producing a timestamp based on a given date and time.
time()
mktime()
mrtime()
mtime()
What will be the output of the following PHP code?
<?php $cars = array(Volvo, BMW, Toyota, Honda, Mercedes, Opel);
print_r(array_chunk($cars, 2));
?>
print_r(array_chunk($cars, 2));
?>
Array ( [0] => Array ( [1] => Volvo [2] => BMW ) [1] => Array ( [1] => Toyota [2] => Honda ) [2] => Array ( [1] => Mercedes [2] => Opel ) )
Array ( [1] => Array ( [1] => Volvo [2] => BMW ) [2] => Array ( [1] => Toyota [2] => Honda ) [3] => Array ( [1] => Mercedes [2] => Opel ) )
Array ( [0] => Array ( [0] => Volvo [1] => Volvo ) [1] => Array ( [0] => BMW [1] => BMW ) [2] => Array ( [0] => Toyota [1] => Toyota ) )
Array ( [0] => Array ( [0] => Volvo [1] => BMW ) [1] => Array ( [0] => Toyota [1] => Honda ) [2] => Array ( [0] => Mercedes [1] => Opel ) )
What is the default number of seconds that cached session pages are made available before the new pages are created?
360
180
3600
1800
Which of the following is/are a PHP code editor?
i) Notepad
ii) Notepad++
iii) Adobe Dreamweaver
iv) PDT
Only iv)
All of the mentioned.
i), ii) and iii)
Only iii)
What will be the output of the following PHP code ?
<?php /*echo Hello world;
*/ ?>
*/ ?>
Hello world
Nothing
Error
/* Hello world */
What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = red;
echo $color1 + $color2;
?>
$color2 = red;
echo $color1 + $color2;
?>
redgreen
red green
0
1
What will be the output of the following PHP code?
<?php $a = array(A, Cat, Dog, A, Dog);
print_r(array_count_values($a));
?>
print_r(array_count_values($a));
?>
Array ( [A] => 2 [Cat] => 1 [Dog] => 2 )
Array ( [A] => 2 [Cat] => 2 [Dog] => 1 )
Array ( [A] => 1 [Cat] => 1 [Dog] => 2 )
Array ( [A] => 2 [Cat] => 1 [Dog] => 1)
Neglecting to set which of the following cookie will result in the cookies domain being set to the host name of the server which generated it.
session.domain
session.path
session.cookie_path
session.cookie_domain
Which one of the following function is used to start a session?
start_session()
session_start()
session_begin()
begin_session()
What will be the output of the following PHP code ?
<?php define('IF', 42);
echo IF: , IF;
?>
echo IF: , IF;
?>
IF:42
No output
IF:
ERROR
What will be the output of the following PHP code? If say date is 22/06/2013.
<?php printf( date(t) ) ?>
30
22
JUNE
2013
What will be the output of the following PHP code ?
<?php $color = red;
$color = green;
echo $color;
?>
$color = green;
echo $color;
?>
red
green
red green
error
What will be the output of the following PHP code ?
<?php class Constants{ define('MIN_VALUE', '0.0');
define('MAX_VALUE', '1.0');
public static function getMinValue() { return self::MIN_VALUE;
} public static function getMaxValue() { return self::MAX_VALUE;
}}echo Constants::getMinValue();
echo Constants::getMaxValue();
?>
define('MAX_VALUE', '1.0');
public static function getMinValue() { return self::MIN_VALUE;
} public static function getMaxValue() { return self::MAX_VALUE;
}}echo Constants::getMinValue();
echo Constants::getMaxValue();
?>
0.01.0
01
No output
ERROR
What will be the output of the following PHP code?
<?php $age = array(Peter=>35, Ben=>37, Joe=>43);
print_r(array_change_key_case($age, CASE_UPPER));
?>
print_r(array_change_key_case($age, CASE_UPPER));
?>
Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )
Array ( [peter] => 35 [ben] => 37 [joe] => 43 )
Array ( [PETER] => 35 [BEN] => 37 [JOE] => 43 )
Array ( [PeTeR] => 35 [BeN] => 37 [Joe] => 43 )
A PHP script should start with ___ and end with ___:
< php >
< ? php ?>
<?php ?>
<% %>
What will be the output of the following PHP code ?
<?php $color1 = 1;
$color2 = 1;
echo $color1 + $color2;
?>
$color2 = 1;
echo $color1 + $color2;
?>
11
2
0
1
What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = green;
echo $color1.$color2;
?>
$color2 = green;
echo $color1.$color2;
?>
red green
red
green
error
What will be the output of the following PHP code?
<?php $a = array(a=>red, b=>green, c=>blue);
echo array_shift($a);
print_r ($a);
?>
echo array_shift($a);
print_r ($a);
?>
green
red
redArray( [c] => green [c] => blue )
redArray( [b] => green [c] => blue )
What will be the output of the following PHP code ?
<?php define('GOOD_OCTAL', 0700);
define('BAD_OCTAL', 0600);
print GOOD_OCTAL;
print '
';
print BAD_OCTAL;
?>
define('BAD_OCTAL', 0600);
print GOOD_OCTAL;
print '
';
print BAD_OCTAL;
?>
448
384
0700
0800
ERROR
No output
What does PHP stand for?
i) Personal Home Page
ii) Hypertext Preprocessor
iii) Pretext Hypertext Processor
iv) Preprocessor Home Page
Both i) and iii)
Both ii) and iv)
Only ii)
Both i) and ii)
What will be the output of the following PHP code?
<?php echo (checkdate(4,31,2010) ? 'Valid' : 'Invalid');
?>
?>
TRUE
FALSE
Valid
Invalid
What is the default time(in seconds) for which session data is considered valid?
1800
3600
1440
1540
How many ways can a session data be stored?
3
4
5
6
What will be the output of the following PHP code?
<?php $cars = array(Volvo, BMW, Toyota);
echo I like . $cars[0] . , . $cars[1] . and . $cars[2] . .;
?>
echo I like . $cars[0] . , . $cars[1] . and . $cars[2] . .;
?>
I like Volvo BMW and Toyota.
I like Volvo, BMW and Toyota)
I like Volvo, BMW and Toyota.
I like. Volvo.,. BMW. and. Toyota)
Say you want to calculate the date 45 days from the present date which one of the following statement will you use?
totime(+45)
totime(+45 days)
strtotime(+45 days)
strtotime(-45 days)
To create an object and set the date to JUNE 22, 2013, which one of the following statement should be executed?
$date = Date(22 JUNE 2013)
$date = new Date(JUNE 22 2013)
$date = DateTime(22 JUNE 2013)
$date = new DateTime(22 JUNE 2013)
What will be the output of the following PHP code ?
<?php $i = 5;
while (--$i > 0 || ++$i){ print $i;
} ?>
while (--$i > 0 || ++$i){ print $i;
} ?>
54321111111….infinitely
555555555…infinitely
54321
5
What will be the output of the following PHP code ?
<?php $color = red;
echo $color . red ;
?>
echo $color . red ;
?>
red red
red
error
nothing
What will be the output of the following PHP code ?
<?php define(__LINE__, PHP is a scripting language);
echo __LINE__;
?>
echo __LINE__;
?>
PHP is a scripting language
__LINE__
2
ERROR
What will be the output of the following PHP code ?
<?php class myObject { }define('myObject::CONSTANT', 'test');
echo myObject::CONSTANT;
?>
echo myObject::CONSTANT;
?>
test
error
myObject::CONSTANT
no output