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PHP Operators and Expressions

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

red green
red
redgreen
green

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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;

Error
2
1
0

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PHP Operators and Expressions
Ceil(-2.1) would be

-3
2
3
-2

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PHP Operators and Expressions
What will be the output of the following PHP code ?
echo "This", "was", "a", "bad", "idea";

Thiswasabadidea
This was a bad idea
This, was, a, bad, idea
Error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 1;
if ($i++ && ($i == 1))
printf("Yesn$i");
else
printf("Non$i");

No 2
No 1
Yes 1
Yes 2

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

$winner$looser
$looser
\
$looser

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