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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = "$winner";
$b = "$looser";
echo $a, $b;

$looser
$looser
\
$winner$looser

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

no output
error
01234567891011121314…infinitely
1234567891011121314….infinitely

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$color1 = "1";
$color2 = "1";
echo "$color1" + "$color2";

0
1
2
11

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 3.3;
$y = 2;
echo $x % $y;

0
Error
2
1

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PHP Operators and Expressions
What will be the output of the following PHP code ?
var $one = 1;
var $two = 2;
echo $one / $two * $one / $two * $two;

0.5
0
Error
1

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$color1 = "red";
$color2 = "green";
echo "$color1" . "$color2";

green
redgreen
red green
red

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