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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 5;
$b = -7;
$c =0;
$d = ++$a && ++$b || ++$c;
print $d;
print $a;
print $a;

06
16
15
05

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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";

HelloWorld
Hello
$one$two
Error

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

red
green
red green
redgreen

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

Nothing
Error
Hello world
Hello world in italics

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$4four = 4;
$3three = 3;
$2two = 2;
echo $4four + $3three / $2two - 1;

Error
4.5
7
3.5

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$y = 2;
if (--$y <> ($y != $y++)) {
echo $y;
}

1
no output
0
2

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