Hi there!
Last lesson we introduced Arrays. Today we will begin discussing the first type of an array called the Indexed Array.
You can create an indexed array in two different ways.
The first way is where the index is automatically assigned starting with the number 0.
Take a look at the example below:
$colors = array(“red”, “blue”, “yellow”);
echo “I like ” . $colors[0] . “, ” . $colors[1] . ” and ” . $colors[2] . “.”;
?>
The output for this example would be I like red, blue and yellow.
The second way the index can be assigned would be manually.
$colors[0] = “red”;
$colors[1] = “blue”;
$colors[2] = “yellow”;
(This way might just be longer to write out!)
Now what if you want to get the length of an array? You can use the count() function, and it’ll tell you how many items are in your array.
For example:
$colors = array(“red”, “blue”, “yellow”);
echo count($cars);
?>
The output would be 3 since there are three cars in your array.
Now let’s do one more thing wth indexed arrays, let’s LOOP!
Below is an example of a loop using arrays:
$arrlength = count($colors);
echo $colors[$x];
echo “<br>”;
}
The output for this would be:
red
blue
yellow
The php just said the arrays of colors should be written, as long as it is less than the amount that’s there!
Hope you’re getting the hang of arrays!
See you next time!