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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$color = "red";
echo "$color";
echo "$COLOR";
echo "$Color";

Error
redred
redredred
red

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 0;
while ((--$i > ++$i) - 1) {
print $i;
}

00000000000000000000….infinitely
-1-1-1-1-1-1-1-1-1-1…infinitely
error
no output

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 4;
$y = 3;
$z = 1;
echo "$x = $x + $y + $z";

8 = 4 + 3 +1
Error
4 = 4 + 3 + 1
8

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 1;
$y = 2;
if (++$x == $y++) {
echo "true ", $y, $x;
}

true 23
true 33
no output
true 22

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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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PHP Operators and Expressions
In PHP the integer 45 is stored exactly as 45. The floating point number 46.3 could be stored as.

46.3
none of above
46.2999999
46

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