PHP · all questions

Operators And Expressions
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

143

Questions

7/8

Page

Pick an option on a question to see the right answer and solution.

Q121

What will be the output of the following PHP code ?

<?php
  $a < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > 5 < / s p an >;$ b = -7;$c =0; 
  $d < s p an c l a ss = " p - b l u e " >= + + < / s p an >$ a && ++ $b < s p an c l a ss = " p - b l u e " > ∣∣ + + < / s p an >$ c;
 print  $d; < s p an c l a ss = " p - b l u e " > p r in t < / s p an >$ a;
?>

Select an option to see the answer and solution.

Q122

What will be the output of the following PHP code ?

<?php
$var1 = 3;
print  $v a r < s p an c l a ss = " p - b l u e " >= + + < / s p an >$ var;
?>

Select an option to see the answer and solution.

Q123

What will be the output of the following PHP code ?

<?php
$var1 = 3;
print ++$var++;
?>

Select an option to see the answer and solution.

Q124

What will be the output of the following PHP code ?

<?php
 $i < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > 0 < / s p an >;$ j = 1; $k = 2;
print !(( $i < s p an c l a ss = " p - b l u e " > + < / s p an >$ k) < ( $j < s p an c l a ss = " p - b l u e " > - < / s p an >$ k));
?>

Select an option to see the answer and solution.

Q125

What will be the output of the following PHP code ?

<?php
 $i < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > 0 < / s p an >;$ j = 1;$k = 2;
print !(( +  +  $i < s p an c l a ss = " p - b l u e " > + < / s p an >$ j) > ( $j < s p an c l a ss = " p - b l u e " > - < / s p an >$ k));
?>

Select an option to see the answer and solution.

Q126

What will be the output of the following PHP code ?

<?php
 $i < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > 0 < / s p an >;$ j = 1;$k = 2;
print (( +  +  $i < s p an c l a ss = " p - b l u e " > + < / s p an >$ j) >! ( $j < s p an c l a ss = " p - b l u e " > - < / s p an >$ k));
?>

Select an option to see the answer and solution.

Q127

What will be the output of the following PHP code ?

<?php
$a = 0x6db7;
print $a<<6;
?>

Select an option to see the answer and solution.

Q128

What will be the output of the following PHP code ?

<?php
$a  =  'a' ;
print $a * 2;
?>

Select an option to see the answer and solution.

Q129

What will be the output of the following PHP code ?

<?php
$a  =  '4' ;
print  +  + $a;
?>

Select an option to see the answer and solution.

Q130

What will be the output of the following PHP code ?

<?php
$a  =  '12345';
print "qwe{$a}rty";
?>

Select an option to see the answer and solution.

Q131

What will be the output of the following PHP code ?

<?php
$a  =  '12345';
print "qwe".$a."rty";
?>

Select an option to see the answer and solution.

Q132

What will be the output of the following PHP code ?

<?php
$a  =  '12345';
echo 'qwe{$a}rty';
?>

Select an option to see the answer and solution.

Q133

What will be the output of the following PHP code ?

<?php
$a  =  '12345';
echo "qwe$arty";
?>

Select an option to see the answer and solution.

Q134

PHP can automatically convert integers to floating point numbers and floating point numbers to integers.

Select an option to see the answer and solution.

Q135

In PHP the integer 45 is stored exactly as 45. The floating point number 46.3 could be stored as.

Select an option to see the answer and solution.

Q136

What is the output of given statement?

Print 17 % 3;

Select an option to see the answer and solution.

Q137

In order to find if a variable holds an actual number or a string containing characters that can be translated into a number you can use:

Select an option to see the answer and solution.

Q138

The result of both the below expressions in PHP will be same:

1) 3+4*2
2) (3+4)*2

Select an option to see the answer and solution.

Q139

Numbers in PHP can’t be infinitely large or small, there is some minimum and maximum size. If more larger (or smaller) numbers are needed then . . . . . must be used:
1. GPM libraries
2. GMP libraries
3. CBMath
4. BCMath

Select an option to see the answer and solution.

Q140

Ceil(-2.1) would be

Select an option to see the answer and solution.

Prev 5 6 7 8 Next