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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 3, 4, 5, 6;
echo "$x";

6
3
Error
4

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PHP Operators and Expressions
Ceil(-2.1) would be

-2
2
3
-3

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = "$winner";
$b = "/$looser";
echo $a,$b;

/
$winner/$looser
/$looser
$looser

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PHP Operators and Expressions
What will be the output of the following PHP code ?
function fun() {
$x = 0;
echo $x;
$x++;
}
fun();
fun();
fun();

123
111
012
000

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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 green
red
green
error

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

368
742
869
error

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