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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
print "echo hello world";

echo hello world
error
hello world
nothing

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

11
10
error
12

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 3.3;
$y = 2;
echo $x % $y;

0
Error
1
2

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$on_e = 1;
$tw_o = 2;
$thre_e = 3;
$fou_r = 4;
echo $on_e / $tw_o + $thre_e / $fou_r;

Error
0.75
0.05
1.25

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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";
}

no output
result is 1
result is true
error

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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);

one
onetwo
nothing
error

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