PHP - Font Awesome Icon Helper

font_awesome_icon_helper.php

<?php
/*
|--------------------------------------------------------------------------
| PHP - Font Awesome Icon Helper
|--------------------------------------------------------------------------
|
| A helper function to build the HTML for a Font Awesome icon with all of
| the recommended accessibility tags.
|
*/

if (! function_exists('fa')) {
    function fa(string $icon, string $title=null, string $class='') {
        $response = '<span class="fa fa-'.$icon.' '.$class.'" aria-hidden="true"'. (!empty($title) ? 'title="'.$title.'"' : '').'></span>';
        if (!empty($title)) {
            $response .= '<span class="sr-only">'.$title.'</span>';
        }
        return $response;
    }
}