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PHP Operators and Expressions

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

1
redgreen
red green
0

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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
This, was, a, bad, idea
Thiswasabadidea
Error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$y = 2;
$w = 4;
$y *= $w /= $y;
echo $y, $w;

42
82
80.5
44

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PHP Operators and Expressions
What will be the output of the following PHP code ?
define('IF', 42);
echo "IF: ", IF;

ERROR
No output
IF:
IF:42

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PHP Operators and Expressions
What is the output of given statement?Print 17 % 3;

5.67
5.666667
2
none of above

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

1010
105
error
510

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