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)
Correct Answer :
A.
Array ( [A] => 2 [Cat] => 1 [Dog] => 2 )
The array_count_values() function counts all the values of an array.
Related Questions
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 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
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
A PHP script should start with ___ and end with ___:
< php >
< ? php ?>
<?php ?>
<% %>
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 function is used to start a session?
start_session()
session_start()
session_begin()
begin_session()
The date() function returns ___ representation of the current date and/or time.
Integer
String
Boolean
Float
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
PHP files have a default file extension of..
.html
.xml
.php
.ph
.asp
.jsp
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 $a = array(red, green, blue);
array_pop($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 /*echo Hello world;
*/ ?>
*/ ?>
Hello world
Nothing
Error
/* Hello world */
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 define(GREETING, PHP is a scripting language, true);
echo GREETING;
echo
echo GREETING;
?>
echo GREETING;
echo
echo GREETING;
?>
PHP is a scripting language
GREETING
GREEtING
GREETING
PHP is a scripting language
PHP is a scripting language
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 $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 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
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 $a = array(A, Cat, Dog, A, Dog);
print_r(array_count_values($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)
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)
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 $cars = array(Volvo, BMW, Toyota, Honda, Mercedes, Opel);
print_r(array_chunk($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 time(in seconds) for which session data is considered valid?
1800
3600
1440
1540
What will be the output of the following PHP code ?
<?php $color1 = red;
$color2 = green;
echo $color1 + $color2;
?>
$color2 = green;
echo $color1 + $color2;
?>
redgreen
red green
0
error
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 $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 class myObject { }define('myObject::CONSTANT', 'test');
echo myObject::CONSTANT;
?>
echo myObject::CONSTANT;
?>
test
error
myObject::CONSTANT
no output
Which one of the following is the default PHP session name?
PHPSESSID
PHPSESID
PHPSESSIONID
PHPIDSESS
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)