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PHP Operators and Expressions

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

Error
# Hello world
Hello world
Hello world# Hello world

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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";

0
510
Error
105

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$var1 = 1 + ++5;
echo $var1;

7
6
error
no output

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

Bye
Error
Hello World
Hello worldBye

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

Nothing
0
5
Error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 5;
$y = 10;
function fun() {
$y = $GLOBALS['x'] + $GLOBALS['y'];
}
fun();
echo $y;

10
15
Error
5

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