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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$var1 = 3;
print $var = ++$var;

1
3
0
2

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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
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 ?
$color1 = "red";
$color2 = "1";
$color3 = "grey";
echo "$color1" + "$color2" . "$color3";

0
grey
1grey
red1grey

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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 ?
$a = 1;
$b = 1;
$d = 1;
print ++$a + ++$a+$a++;
print $a++ + ++$b;
print ++$d + $d++ + $a++;

869
error
742
368

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$one = 1;
print($one);
print $one;

Error
11
10
01

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