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PHP Build a Basic PHP Website (2018) Listing and Sorting Inventory Items Introducing Arrays

Fabio Viola
Fabio Viola
467 Points
Posted by Fabio Viola
Fabio Viola
467 Points

Function count()

I am doing an exercise that is a part of this tutorial: https://teamtreehouse.com/library/build-a-basic-php-website/listing-and-sorting-inventory-items/introducing-arrays

But during the previous videos nothing has been mention about count() function.

How can I see a basic example of this count() function?

Thank you

index.php 
<?php
$letters = array (
  "A",
  "C",
  "M",
  "E");


echo "Today's challenge is brought to you by the ";
echo "2";
echo " letters: ";
echo "AC";
echo ".";

?>

1 Answer

Mike Costa
PLUS
Mike Costa
Courses Plus Student 26,362 Points
Mike Costa
Mike Costa
Courses Plus Student 26,362 Points

At the very basic level of the count() function, when you pass in an array to the count function, it returns an integer of the total number of elements inside of it. So if you had an array of letters like above:

// init array
$letters = ['A', 'C', 'M', 'E'];

echo count($letters); // returns 4