Operators And Expressions In Php - Study Mode
[#61] What will be the output of the following PHP code ? <?php $one = "one"
$two = "two"
print( $one,$two )
?>
Correct Answer
(D) error
Explanation
Solution: The above syntax will produce an error, unlike the echo statement.
[#62] What will be the output of the following PHP code ? <?php $color = "red"
$color = "green"
echo "$color"
?>
Correct Answer
(B) green
Explanation
Solution: The variable contains the last value which has been assigned.
[#63] What will be the output of the following PHP code ? <?php $color1 = "red"
$color2 = "green"
echo "$color1" . "$color2"
?>
Correct Answer
(D) redgreen
Explanation
Solution: The . operator is used to join to strings.
[#64] What will be the output of the following PHP code ? <?php $color1 = "red"
$color2 = "green"
echo "$color1" + "$color2"
?>
Correct Answer
(C) 0
Explanation
Solution: + operator does not join both the strings.
[#65] What will be the output of the following PHP code ? <?php $color1 = "red"
$color2 = "red"
echo "$color1" + "$color2"
?>
Correct Answer
(C) 0
Explanation
Solution: + does not return 1 if the variables are equal.