php fontawesome for Joomla

phpfontawesome-joomla.php

<?php
//  change $content with your html content
//  replace any <i class fa fa-xxx> with svg equivalent

// fa-b, fa-brands, fa-light, fa-regular, fa-solid, fa-duotone, fas, far, fal, fab, fad
preg_match_all('@<' . 'i class="fa-(.*) fa-(.*)"' . '>@Us', $content, $newmatches);
$svgMatchs = $newmatches[2];
foreach ($svgMatchs as $key=>$svgMatch) {
    $svgFile = JPATH_BASE.$tpath . '/svgs/' . $newmatches[1][$key] . '/' . $svgMatch . '.svg';
  
    if (file_exists($svgFile)) {
        $svg = file_get_contents($svgFile);
        $content = str_replace('<i class="fa-' . $newmatches[1][$key] . ' fa-' . $svgMatch . '"></i>', $svg, $content);
    }
}

echo $content;

?>