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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 5;
$y = 10;
$z = "$x + $y";
echo "$z";

10 + 5
$z
$x + $y
15

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 10;
$y = 4;
$z = 3;
echo $x % $y % $z;

2
0
Error
1

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

Error
red
red
$color

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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();

01
No output
0.01.0
ERROR

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$var1 = 3;
print $var = ++$var;

2
1
3
0

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = "";
while ($i = 10) {
print "hi";
}
print "hello";

infinite loop
hihello
error
hello

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