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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$auth = 1;
$status = 1;
if ($result = (($auth == 1) && ($status != 0))) {
print "result is $result";
}

result is true
error
no output
result is 1

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

onetwo
nothing
one
error

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

Hello World
Missing semicolon error
Error
Nothing

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PHP Operators and Expressions
What will be the output of the following PHP code ?
int $one = 1;
echo "$one";

Error
1
0
$one

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 5;
{
$x = 10;
echo "$x";
}
echo "$x";

1010
error
105
510

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 12;
--$a;
echo $a++;

10
12
11
error

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