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PHP Operators and Expressions

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

Bye
Error
Hello worldBye
Hello World

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PHP Operators and Expressions
Ceil(-2.1) would be

-3
2
3
-2

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$b = 1;
$c = 4;
$a = 5;
$d = $b + $c == $a;
print $d;

0
1
10
5

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 0;
while ((--$i > ++$i) - 1) {
print $i;
}

no output
-1-1-1-1-1-1-1-1-1-1…infinitely
error
00000000000000000000….infinitely

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

$color
red
Error
red

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$color1 = "1";
$color2 = "1";
echo "$color1" + "$color2";

11
0
2
1

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