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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 10;
$b = 4;
$c = fun(10,4);
function fun($a,$b) {
$b = 3;
return $a - $b + $b - $a;
}
echo $a;
echo $b;
echo $c;

1400
4100
104
410

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 2;
while (++$i) {
while ($i --> 0)
print $i;
}

210
infinite loop
no output
10

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$4four = 4;
$3three = 3;
$2two = 2;
echo $4four + $3three / $2two - 1;

Error
3.5
4.5
7

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 10;
$b = 10;
if ($a = 5)
$b--;
print $a;
print $b--;

58
108
59
109

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$y = 2;
if (**$y == 4) {
echo $y;
}

no output
2
error at line2
4

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PHP Operators and Expressions
What will be the output of the following PHP code ?
print("this"."was"."a"."bad"."idea");

thiswasabadidea
error
nothing
this was a bad idea

ANSWER DOWNLOAD EXAMIANS APP
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