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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 5;
function fun()
{
$x = 10;
echo "$x";
}
fun();
echo "$x";

105
510
0
Error

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

Hello world
Error
Hello world in italics
Nothing

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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;

Hello World
Hello
HelloWorld
World

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 1;
$b = 3;
$d = $a++ + ++$b;
echo $d;

3
4
5
error

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

error
nothing
red red
red

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PHP Operators and Expressions
Ceil(-2.1) would be

3
2
-3
-2

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