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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
define("GREETING", "PHP is a scripting language");
echo $GREETING;

no output
PHP is a scripting language
$GREETING
GREETING

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = "test";
$y = "this";
$z = "also";
$x .= $y .= $z ;
echo $x;
echo $y;

testthisalsothisalso
testthisthisalso
testthis
error at line 4

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PHP Operators and Expressions
What will be the output of the following PHP code ?
echo 5 * 9 / 3 + 9;

3.85
3.7
24
0

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

0
105
Error
510

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 4;
$y = -3;
$z = 11;
echo 4 + $y * $z / $x;

3.25
-3.25
4.25
-4.25

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 2;
while (++$i) {
while ($i --> 0)
print $i;
}

infinite loop
no output
210
10

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