PHP · all questions

Operators And Expressions
practice.

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143

Questions

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Q61

What will be the output of the following PHP code ?

<?php
$x;
echo "$x";
?>

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Q62

What will be the output of the following PHP code ?

<?php
$x = 5;
{
    $x = 10;
    echo "$x";
}
echo "$x";
?>

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Q63

What will be the output of the following PHP code ?

<?php
$x = 5;
{
    echo "$x";
}
?>

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Q64

What will be the output of the following PHP code ?

<?php
$x = 5;
function fun()
{
    echo "$x";
}
fun();
?>

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Q65

What will be the output of the following PHP code ?

<?php
$x = 5;
function fun()
{
    $x = 10;
    echo "$x";
}
fun();
echo "$x";
?>

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Q66

What will be the output of the following PHP code ?

<?php
$x = 5;
function fun()
{
    $x = 10;
    echo "$x";
}
fun();
echo "$x";
?>

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Q67

What will be the output of the following PHP code ?

<?php
$x = 4;
$y = 3;
function fun( $x < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > 3 < / s p an >,$ y = 4)
{
     $z < s p an c l a ss = " p - b l u e " >=< / s p an >$ x+ $y < s p an c l a ss = " p - b l u e " > / < / s p an >$ y+$x;
    echo "$z";
} 
echo $x;
echo $y;
echo $z; 
fun( $x,$ y);
?>

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Q68

What will be the output of the following PHP code ?

<?php
$x =4;
$y = 3;
function fun( $x,$ y)
{
     $z < s p an c l a ss = " p - b l u e " >=< / s p an >$ x +  $y < s p an c l a ss = " p - b l u e " > / < / s p an >$ y + $x;
    echo "$z";
}
echo $x;
echo $y;
echo $z; 
fun(3, 4);
?>

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Q69

What will be the output of the following PHP code ?

<?php
function fun( $x,$ y)
{
    $x = 4;
    $y = 3;
     $z < s p an c l a ss = " p - b l u e " >=< / s p an >$ x +  $y < s p an c l a ss = " p - b l u e " > / < / s p an >$ y + $x;
    echo "$z";
}
fun(3, 4); 
?>

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Q70

What will be the output of the following PHP code ?

<?php
$x = 3, 4, 5, 6;
echo "$x";
?>

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Q71

What will be the output of the following PHP code ?

<?php
$a = 10;
$b = 4;
$c = fun(10,4);
function fun( $a,$ b)
{
    $b = 3;
    return  $a < s p an c l a ss = " p - b l u e " > - < / s p an >$ b +  $b < s p an c l a ss = " p - b l u e " > - < / s p an >$ a; 
}
echo $a;
echo $b;
echo $c;
?>

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Q72

What will be the output of the following PHP code ?

<?php
 $a < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > "$ winner";
 $b < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > "/$ looser";
echo  $a,$ b;
?>

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Q73

What will be the output of the following PHP code ?

<?php
 $a < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > "$ winner";
 $b < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > "$ looser";
echo  $a,$ b;
?>

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Q74

What will be the output of the following PHP code ?

<?php
 $a < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > "$ winner";
 $b < s p an c l a ss = " p - b l u e " >=< / s p an >< s p an c l a ss = " p - r e d " > "$ looser";
echo  $a,$ b;
?>

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Q75

What will be the output of the following PHP code ?

<?php
$x = 5;
$y = 10;
function fun()
{
     $G L O B A L S [< / s p an >< s p an c l a ss = " p - r e d " >^{'} y^{'} <! - - ? s p an - - >< s p an c l a ss = " p - b l u e " >] =$ GLOBALS['x'] + $GLOBALS['y'];
} 
fun();
echo $y;
?>

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Q76

What will be the output of the following PHP code ?

<?php
$x = 5;
$y = 10;
function fun()
{
     $y < s p an c l a ss = " p - b l u e " >=$ GLOBALS['x'] + $GLOBALS['y'];
} 
fun();
echo $y;
?>

Select an option to see the answer and solution.

Q77

What will be the output of the following PHP code ?

<?php
function fun()
{
    $x = 0;
    echo $x;
    $x++;
}
fun();
fun();
fun();
?>

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Q78

What will be the output of the following PHP code ?

<?php
function fun()
{
    static $x = 0;
    echo $x;
    $x++;
}
fun();
fun();
fun();
?>

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Q79

What will be the output of the following PHP code ?

<?php
static $x = 0;
function fun()
{
    echo $x;
    $x++;
}
fun();
fun();
fun();
?>

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Q80

What will be the output of the following PHP code ?

<?php
$x=0;
function fun()
{
    echo $GLOBALS['x'];
    $GLOBALS['x']++;
}
fun();
fun();
fun();
?>

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