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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 0;
$x = $i++;
$y = ++$i;
print $x;
print $y;

01
02
12
21

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PHP Operators and Expressions
What will be the output of the following PHP code ?
echo "echo "Hello World"";

echo “Hello world”
Error
Hello world
echo Hello world

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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
No output
01
ERROR

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$one = "Hello";
$two = "World";
echo "$one$two";

HelloWorld
Error
Hello
$one$two

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PHP Operators and Expressions
What will be the output of the following PHP code ?
echo $x-- != ++$x;

no output
1
0
error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 5;
$b = -7;
$c =0;
$d = ++$a && ++$b || ++$c;
print $d;
print $a;
print $a;

15
16
06
05

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