Hi there! Last lesson we were in middle of learning about looping. The last type of loop, is specific to arrays. Therefore, before we learn that type of looping, let’s learn about Arrays!
What is an Array?
An array is a single variable that stores many values.
For Example, I am going to make an array of different types of colors.
$colors = array(“red”, “yellow”, “blue”);
echo “I like ” . $colors[0] . “, ” . $colors[1] . ” and ” . $colors[2] . “.”;
?>
The output for this example would be – I like red, yellow, and blue.
The advantage of an array is that you don’t have to store each item in a single variable, you can do it all at once like in the example above.
An array can hold many values under one name, and you can get hold of a certain value through the index number.
In PHP there are three different types of arrays.
- Indexed arrays – This uses a numeric index.
- Associative arrays – This is an array with named keys.
- Multidimensional arrays – This is an array containing one or more array.
The example we did earlier was an example of the index array.
Next class we will begin learning more about the Index Arrays!
Good luck practicing, see you next time!