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PHP Operators and Expressions

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

Error
123
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
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 ?
echo $red;

True
0
Error
Nothing

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = '4';
print + + $a;

5
error
0
no output

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = "$winner";
$b = "$looser";
echo $a, $b;

\
$winner$looser
$looser
$looser

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

$color
Error
red
red

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