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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 = "1";
$color3 = "grey";
echo "$color1" + "$color2" . "$color3";

red1grey
0
grey
1grey

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PHP Operators and Expressions
What will be the output of the following PHP code ?
class Constants{
define('MIN_VALUE', '0.0');
define('MAX_VALUE', '1.0');
public static function getMinValue() {
return self::MIN_VALUE;
}
public static function getMaxValue() {
return self::MAX_VALUE;
}
}
echo Constants::getMinValue();
echo Constants::getMaxValue();

0.01.0
ERROR
01
No output

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

Error
Nothing
0
5

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 3.5;
$y = 2;
$z = 2;
echo $x / $y / $z;

3.5
Error
0.875
1.75

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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;
}

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

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PHP Operators and Expressions
What is the output of given statement?Print 17 % 3;

5.666667
none of above
5.67
2

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