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 )
Correct Answer :
C.
Array ( [PETER] => 35 [BEN] => 37 [JOE] => 43 )
The array_change_key_case() function changes all keys in an array to lowercase or uppercase.
Related Questions
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
A PHP script should start with ___ and end with ___:
< php >
< ? php ?>
<?php ?>
<% %>
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)
How many ways can a session data be stored?
3
4
5
6
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
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)
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(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
Which of following variables can be assigned a value to it?
i) $3hello
ii) $_hello
iii) $this
iv) $This
All of the mentioned
Only ii)
ii), iii) and iv)
ii) 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 $i = 0;
while (++$i && --$i){ print $i;
} ?>
while (++$i && --$i){ print $i;
} ?>
1234567891011121314….infinitely
01234567891011121314…infinitely
no output
error
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 )
What will be the output of the following PHP code?
<?php echo (checkdate(4,31,2010) ? 'Valid' : 'Invalid');
?>
?>
TRUE
FALSE
Valid
Invalid
What will be the output of the following PHP code ?
<?php define(GREETING, PHP is a scripting language);
echo $GREETING;
?>
echo $GREETING;
?>
$GREETING
no output
PHP is a scripting language
GREETING
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 $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 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 $i = ;
while ($i = 10){ print hi;
}print hello;
?>
while ($i = 10){ print hi;
}print hello;
?>
hello
infinite loop
hihello
error
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)
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
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 $a1 = array(red, green);
$a2 = array(blue, yellow);
print_r(array_merge($a1, $a2));
?>
$a2 = array(blue, yellow);
print_r(array_merge($a1, $a2));
?>
Array ( [0] => red [1] => green)
Array ( [0] => blue [1] => yellow [2] => red [3] => green )
Array ( [0] => red [1] => green [2] => blue [3] => yellow )
Array ( [0] => blue [1] => yellow )
Which function displays the web pages most recent modification date?
lastmod()
getlastmod()
last_mod()
get_last_mod()
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 $color1 = red;
$color2 = 1;
echo $color1 + $color2;
?>
$color2 = 1;
echo $color1 + $color2;
?>
red1
red 1
0
1
Which one of the following is the default PHP session name?
PHPSESSID
PHPSESID
PHPSESSIONID
PHPIDSESS
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 $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 = 1;
$color3 = greyecho $color1 + $color2 . $color3;
?>
$color2 = 1;
$color3 = greyecho $color1 + $color2 . $color3;
?>
1grey
grey
0
red1grey
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