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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 2;
while (++$i) {
while ($i --> 0)
print $i;
}

10
210
no output
infinite loop

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

red red
error
nothing
red

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$color1 = "red";
$color2 = "1";
$color3 = "grey";
echo "$color1" + "$color2" . "$color3";

1grey
grey
0
red1grey

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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
HelloWorld
Hello World
World

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PHP Operators and Expressions
The result of below two statements will be:Round(2.5)Round(-2.5)

2, -2
3, -3
2.5, -2
3.5, -3.5

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PHP Operators and Expressions
What will be the output of the following PHP code ?
function fun($x,$y) {
$x = 4;
$y = 3;
$z = $x + $y / $y + $x;
echo "$z";
}
fun(3, 4);

Error
7
0
9

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