An array stores multiple values in one single variable:
<?php $cars = array("Volvo", "BMW", "Toyota"); echo "I like " . $cars . ", " . $cars . " and " . $cars . "."; ?>
What is an Array?
An array is a special variable, which can hold more than one value at a time.
If you have a list of items (a list of car names, for example), storing the cars in single variables could look like this:
$cars1 = "Volvo"; $cars2 = "BMW"; $cars3 = "Toyota";
However, what if you want to loop through the cars and find a specific one? And what if you had not 3 cars, but 300?
The solution is to create an array!
An array can hold many values under a single name, and you can access the values by referring to an index number.
Create an Array in PHP
In PHP, the
array() function is used to create an array:
In PHP, there are three types of arrays:
- Indexed arrays – Arrays with a numeric index
- Associative arrays – Arrays with named keys
- Multidimensional arrays – Arrays containing one or more arrays
Get The Length of an Array – The count() Function
count() function is used to return the length (the number of elements) of an array:
<?php $cars = array("Volvo", "BMW", "Toyota"); echo count($cars); ?>