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PHP Operators and Expressions

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

True
Nothing
0
Error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 1;
$b = 3;
$d = $a++ + ++$b;
echo $d;

3
5
error
4

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 10;
$b = 10;
if ($a = 5)
$b--;
print $a;
print $b--;

109
59
108
58

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 10;
$j = 0;
if ($i || ($j = $i + 10)) {
echo "true";
}
echo $j;

true0
0
true20
20

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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 ?
$x = 3, 4, 5, 6;
echo "$x";

4
3
6
Error

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