What will be the output of the following PHP code ?
<?php $color = red;
echo $color . red ;
?>
echo $color . red ;
?>
red red
red
error
nothing
Correct Answer :
C. error
Use of undefined constant red.
Related Questions
What will be the output of the following code?
<?php
$foo = 'Bob';
$bar = &$foo;
$bar = "My name is $bar";
echo $bar;
echo $foo;
?>
Error
My name is BobBob
My name is BobMy name is Bob
My name is Bob Bob
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)
What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = 1;
$color3 = greyecho $color1 + $color2 . $color3;
?>
$color2 = 1;
$color3 = greyecho $color1 + $color2 . $color3;
?>
1grey
grey
0
red1grey
Which one of the following is the very first task executed by a session enabled page?
Delete the previous session
Start a new session
Check whether a valid session exists
Handle the session
What is the default number of seconds that cached session pages are made available before the new pages are created?
360
180
3600
1800
What will be the output of the following PHP code?
<?php $a1 = array_fill(3, 4, blue);
$b1 = array_fill(0, 1, red);
print_r($a1);
echo
;
print_r($b1);
?>
$b1 = array_fill(0, 1, red);
print_r($a1);
echo
;
print_r($b1);
?>
Array ( [3] => blue [4] => blue)
Array ( [0] => red )
Array ( [4] => blue [5] => blue [6] => blue)
Array ( [0] => red )
Array ( [3] => blue [4] => blue [5] => blue [6] => blue )
Array ()
Array ( [3] => blue [4] => blue [5] => blue [6] => blue )
Array ( [0] => red )
What will be the output of the following PHP code ?
<?php define('GREETING_TEST', 'PHP is a scripting language', true);
echo GREETING_TESt;
$changing_variable = 'test';
echo constant('GREETING_' . strtoupper($changing_variable));
?>
echo GREETING_TESt;
$changing_variable = 'test';
echo constant('GREETING_' . strtoupper($changing_variable));
?>
PHP is a scripting language
PHP is a scripting language
GREETING_TESt
PHP is a scripting language
PHP is a scripting language
GREETING_TEST
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 $a = array(a=>red, b=>green, c=>blue);
echo array_shift($a);
print_r ($a);
?>
echo array_shift($a);
print_r ($a);
?>
green
red
redArray( [c] => green [c] => blue )
redArray( [b] => green [c] => blue )
Which one of the following is the default PHP session name?
PHPSESSID
PHPSESID
PHPSESSIONID
PHPIDSESS
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 $i = ;
while ($i = 10){ print hi;
}print hello;
?>
while ($i = 10){ print hi;
}print hello;
?>
hello
infinite loop
hihello
error
If the directive session.cookie_lifetime is set to 3600, the cookie will live until..
3600 sec
3600 min
3600 hrs
the browser is restarted
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
A PHP script should start with ___ and end with ___:
< php >
< ? php ?>
<?php ?>
<% %>
How many ways can a session data be stored?
3
4
5
6
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 $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 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
Which of the following PHP statements will output Hello World on the screen?
i) echo (“Hello World”);
ii) print (“Hello World”);
iii) printf (“Hello World”);
iv) sprintf (“Hello World”);
i) and ii)
i), ii) and iii)
All of the mentioned
i), ii) and iv)
Which one of the following function is useful for producing a timestamp based on a given date and time.
time()
mktime()
mrtime()
mtime()
PHP files have a default file extension of..
.html
.xml
.php
.ph
.asp
.jsp
What will be the output of the following PHP code?
<?php $a = array(red, green, blue);
array_pop($a);
print_r($a);
?>
array_pop($a);
print_r($a);
?>
Array ( [0] => red [1] => green )
Array ( [0] => green [1] => blue )
Array ( [0] => red [1] => blue )
Array ( [0] => blue [1] => blue )
If session.use_cookie is set to 0, this results in use of..
Session
Cookie
URL rewriting
Nothing happens
What will be the output of the following PHP code ?
<?php $i = 0;
while ((--$i > ++$i) - 1){ print $i;
} ?>
while ((--$i > ++$i) - 1){ print $i;
} ?>
00000000000000000000….infinitely
-1-1-1-1-1-1-1-1-1-1…infinitely
no output
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 $i = 2;
while (++$i){ while ($i --> 0) print $i;
} ?>
while (++$i){ while ($i --> 0) print $i;
} ?>
210
10
no output
infinite loop
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 $color1 = red;
$color2 = green;
echo $color1 . $color2;
?>
$color2 = green;
echo $color1 . $color2;
?>
red
green
red green
redgreen
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 ) )