Challenge for ZEND PHP5 Certification - 022

[hinom 5]

Exercise 22

 

What will be the output of following code?

 

$arr = "a";
$arr[0] = "b";
echo $arr;
echo $arr[0];

A. ab

B. $arr is undefined

C. bb

D. Parse error

[hinom 5]

Answer: C

 

Explanation

 

<?php

$arr = "a";
$arr[0] = "b";
echo $arr;
echo $arr[0];

?>

http://php.net/manual/language.types.array.php