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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
print("this"."was"."a"."bad"."idea");

thiswasabadidea
this was a bad idea
error
nothing

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 1;
$y = 2;
if (++$x == $y++) {
echo "true ", $y, $x;
}

true 33
no output
true 23
true 22

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

0
Error
1
Nothing

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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";
}

result is true
no output
error
result is 1

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

1
no output
error
0

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PHP Operators and Expressions
What will be the output of the following PHP code ?
class myObject { }
define('myObject::CONSTANT', 'test');
echo myObject::CONSTANT;

error
myObject::CONSTANT
test
no output

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