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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";

# Hello world
Error
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 = 4;
$y = -3;
$z = 11;
echo 4 + $y * $z / $x;

-4.25
4.25
-3.25
3.25

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 4;
$y = 3;
$z = 1;
echo "$x = $x + $y + $z";

Error
4 = 4 + 3 + 1
8 = 4 + 3 +1
8

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PHP Operators and Expressions
Ceil(-2.1) would be

-3
2
-2
3

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 0;
function fun() {
echo $GLOBALS['x'];
$x++;
}
fun();
fun();
fun();

Nothing
012
Error
000

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PHP Operators and Expressions
What will be the output of the following PHP code ?
define('IF', 42);
echo "IF: ", IF;

IF:42
IF:
No output
ERROR

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