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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
define('IF', 42);
echo "IF: ", IF;

ERROR
IF:
IF:42
No output

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 0;
$x = $i++;
$y = ++$i;
print $x;
print $y;

21
12
01
02

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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
true20
20
0

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

Nothing
Hello world
Hello world in italics
Error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 'a';
print $a * 2;

192
0
2
error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$cars = array("Volvo", "BMW", "Toyota");
echo "My car is a {$cars[0]}";

My car is a Toyota
Error
My car is a Volvo
My car is a BMW

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