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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);

error
one
nothing
onetwo

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 3, 4, 5, 6;
echo "$x";

3
6
Error
4

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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 + $k) < ($j - $k));

true
0
false
1

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

Nothing
Error
0
True

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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--;

109
108
58
59

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = "test";
$y = "this";
$z = "also";
$x .= $y .= $z ;
echo $x;
echo $y;

testthisalsothisalso
testthisthisalso
testthis
error at line 4

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