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PHP Operators and Expressions

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

redred
red
redredred
Error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 2;
while (++$i) {
while ($i --> 0)
print $i;
}

infinite loop
10
no output
210

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

Error
red
$color
red

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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;

05
15
06
16

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 1;
if ($i++ && ($i == 1))
printf("Yesn$i");
else
printf("Non$i");

No 1
Yes 2
No 2
Yes 1

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

$z
$x + $y
15
10 + 5

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