What will be the output of the following PHP code ?
<?php define(VAR_NAME,test);
${VAR_NAME} = value;
echo VAR_NAME;
echo ${VAR_NAME};
?>
${VAR_NAME} = value;
echo VAR_NAME;
echo ${VAR_NAME};
?>
test
testtest
testvalue
error, constant value cannot be changed
Correct Answer :
C. testvalue
${VAR_NAME} creates a new variable which is not same as VAR_NAME. Related Questions
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 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 $i = 0;
while ($i = 10){ print hi;
}print hello;
?>
while ($i = 10){ print hi;
}print hello;
?>
hello
infinite loop
hihello
error
What will be the output of the following PHP code?
<?php echo (checkdate(4,31,2010) ? 'Valid' : 'Invalid');
?>
?>
TRUE
FALSE
Valid
Invalid
The date() function returns ___ representation of the current date and/or time.
Integer
String
Boolean
Float
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
Which of the following must be installed on your computer so as to run PHP script?
i) Adobe Dreamweaver
ii) PHP
iii) Apache
iv) IIS
All of the mentioned.
Only ii)
ii) and iii)
ii), iii) and iv)
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 $a = array(a=>red, b=>green, c=>blue);
echo array_shift($a);
print_r ($a);
?>
echo array_shift($a);
print_r ($a);
?>
green
red
redArray( [c] => green [c] => blue )
redArray( [b] => green [c] => blue )
What 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 $i = 2;
while (++$i){ while (--$i > 0) print $i;
} ?>
while (++$i){ while (--$i > 0) print $i;
} ?>
210
10
no output
infinite loop
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
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 $color1 = 1;
$color2 = 1;
echo $color1 + $color2;
?>
$color2 = 1;
echo $color1 + $color2;
?>
11
2
0
1
Which one of the following format parameter can be used to identify timezone?
T
N
E
I
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
Which directive determines how the session information will be stored?
save_data
session.save
session.save_data
session.save_handler
What will be the output of the following PHP code ?
<?php $i = 0;
while(++$i || --$i){ print $i;
} ?>
while(++$i || --$i){ print $i;
} ?>
1234567891011121314….infinitely
01234567891011121314…infinitely
1
0
How many ways can a session data be stored?
3
4
5
6
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 )
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
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 $i = 5;
while (--$i > 0 && ++$i){ print $i;
} ?>
while (--$i > 0 && ++$i){ print $i;
} ?>
5
555555555…infinitely
54321
error
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
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 define(NEW_GOOD_NAME_CONSTANT, I have a value);
define(OLD_BAD_NAME_CONSTANT, NEW_GOOD_NAME_CONSTANT);
�echo NEW_GOOD_NAME_CONSTANT;
echo OLD_BAD_NAME_CONSTANT;
?>
define(OLD_BAD_NAME_CONSTANT, NEW_GOOD_NAME_CONSTANT);
�echo NEW_GOOD_NAME_CONSTANT;
echo OLD_BAD_NAME_CONSTANT;
?>
I have a value
I have a valueI have a value
ERROR
I have a valueNEW_GOO_NAME_CONSTANTS
If the format is F then which one of the following will be returned?
Complete text representation of month
Day of month, with leading zero
Daylight saving time
Day of month, without zeros
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 function displays the web pages most recent modification date?
lastmod()
getlastmod()
last_mod()
get_last_mod()
What will be the output of the following PHP code?
<?php $fname = array(Peter, Ben, Joe);
$age = array(35, 37, 43);
$c = array_combine($fname, $age);
print_r($c);
?>
$age = array(35, 37, 43);
$c = array_combine($fname, $age);
print_r($c);
?>
Array ( Peter Ben Joe )
Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )
Array ( 35 37 43 )
Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )