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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$one = "one";
$two = "two";
print($one$two);

nothing
error
onetwo
one

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 0;
$j = 1;
$k = 2;
print !(( + + $i + $j) > ($j - $k));

no output
1
0
error

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PHP Operators and Expressions
The result of below two statements will be:Round(2.5)Round(-2.5)

2.5, -2
2, -2
3.5, -3.5
3, -3

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 5;
function fun()
{
$x = 10;
echo "$x";
}
fun();
echo "$x";

0
Error
105
510

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = '12345';
print "qwe{$a}rty";

qwe{$a}rty
error
qwe12345rty
no output

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PHP Operators and Expressions
What will be the output of the following PHP code ?
echo $red;

Nothing
0
Error
True

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