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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$color1 = "red";
$color2 = "green";
echo "$color1" . "$color2";

red green
red
redgreen
green

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 3.5;
$y = 2;
$z = 2;
echo $x / $y / $z;

1.75
3.5
0.875
Error

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

0
True
Nothing
Error

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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
Error
000
012

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

Hello world# Hello world
Error
# 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";

510
0
Error
105

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