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PHP Operators and Expressions

PHP Operators and Expressions
The result of below two statements will be:Round(2.5)Round(-2.5)

2, -2
3, -3
3.5, -3.5
2.5, -2

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

0
1
no output
error

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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 ?
$x = 4;
$y = 3;
function fun($x = 3, $y = 4) {
$z = $x+$y/$y+$x;
echo "$z";
}
echo $x;
echo $y;
echo $z;
fun($x, $y);

43
439
943
349

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 0x6db7;
print $a<<6;

error
no output
1797568
0x6dc0

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PHP Operators and Expressions
What will be the output of the following PHP code ?
define("NEW_GOOD_NAME_CONSTANT", "I have a value");
define("OLD_BAD_NAME_CONSTANT", NEW_GOOD_NAME_CONSTANT);
echo NEW_GOOD_NAME_CONSTANT;
echo OLD_BAD_NAME_CONSTANT;

ERROR
I have a valueNEW_GOO_NAME_CONSTANTS
I have a value
I have a valueI have a value

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