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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
define("GREETING", "PHP is a scripting language");
echo $GREETING;

PHP is a scripting language
no output
GREETING
$GREETING

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 0;
$j = 1;
$k = 2;
print !(($i + $k) < ($j - $k));

0
false
true
1

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

error
green
red
red green

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$one = 1;
print($one);
print $one;

Error
01
10
11

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PHP Operators and Expressions
What will be the output of the following PHP code ?
define("VAR_NAME","test");
${VAR_NAME} = "value";
echo VAR_NAME;
echo ${VAR_NAME};

error, constant value cannot be changed
test
testvalue
testtest

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PHP Operators and Expressions
Ceil(-2.1) would be

-2
3
2
-3

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