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PHP

Posted by Timothy Boland
Timothy Boland
18,237 Points

The accepted answer to the following question in the build-a-simple-php-application/listing-inventory-items/arrays Quiz is incorrect

The Question is: The following block of code displays the number of elements in an array named $flavors. What is that number?

$flavors = array("Vanilla", "Chocolate", "Strawberry");

$flavors[] = "Cookie Dough";

echo count($flavors);

The accepted answer is 1....but the correct answer should be 4....i ran the code myself

1 Answer

Timothy Boland
Timothy Boland
18,237 Points
Timothy Boland
Timothy Boland
18,237 Points

ahhh....nevermind...i see the difference now

$flavors[] = "Cookie Dough";

adds a value to the existing array called $flavors

$flavors = array("Cookie Dough");

creates a "new" array with a single value of "Cookie Dough"...therefore the count equals 1

Christer Nordbø
Christer Nordbø
2,133 Points

Unless there is something wrong with the code in your first post - i would actually agree with you. That code looks to me like it should return count = 4.

The difference like you explain it is correct - but as you can see, it creates the array with 3 items first, and then add extra item to it.

Timothy Boland
Timothy Boland
18,237 Points

Yes, the code in the first post is wrong...there are 2 almost identical questions in the quiz....specifying the difference between $flavors[] = "element"; and $flavors = array(element);

I would delete the post if I could, but that doesn't appear to be an option