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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
echo "This", "was", "a", "bad", "idea";

This, was, a, bad, idea
Thiswasabadidea
This was a bad idea
Error

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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;

myObject::CONSTANT
no output
test
error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$hello = "Hello World";
$bye = "Bye";
echo $hello;
"$bye";

Hello worldBye
Error
Hello World
Bye

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

echo hello world
hello world
error
nothing

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = 5;
$b = -7;
$c =0;
$d = ++$a && ++$b || ++$c;
print $d;
print $a;
print $a;

05
15
06
16

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$color1 = "red";
$color2 = "green";
echo "$color1" . "$color2";

red
red green
redgreen
green

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