Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial


PHP Sorting value from array


I tried to practice creating a function for displaying array from csv file. I already list them as well, but can not sorting it from a to z by product name.

My functions:

  public function get_products() {
    return array_keys( $this->data );

And display

                                        <select name="product-name">
                                            <option value="none">Select your product</option>
                                                foreach ( $data->get_products() as $product )
                                                    echo '<option value="' . esc_attr( $product ) . '">' . $product . '</option>';

I tried these methods.

  public function get_products() {
    return array_keys( $this->data );
    return sort( $this->data );

var_dump return TRUE, but not a list array as array_keys.

A second question, on 'public function', is this mandatory to use 'return' on each row?