OEmbed body parser for oscarotero/Embed.

README.md

Uses https://github.com/oscarotero/Embed

Oembed.php

<?php

use Exception;
use Embed\Embed;

class Oembed
{
    /**
     * Accepted Urls
     *
     * @var array Holds an array of URLs that are accepted to be replaced.
     */
    public $acceptedUrls = [];

    /**
     * Constructor
     *
     * @return self
     */
    public function __construct()
    {
        $this->acceptedUrls = [
            'https://www.youtube.com',
            'https://youtu.be',
            'https://vimeo.com',
            'https://twitter.com'
        ];

        return $this;
    }

    /**
     * Get the embed code by URL.
     *
     * @param string $url
     * @return mixed
     */
    public function getCodeByUrl($url)
    {
        try {
            $embed = (new Embed)->get($url);

            return $embed->code ?? null;
        } catch(Exception $e) {
            return $e->getMessage();
        }
    }

    /**
     * Find URLs inside a body and replace them with OEmbeds.
     *
     * @param string $body The body that needs to be parsed.
     * @return string The parsed string.
     */
    public function parse($body)
    {
        // @see https://stackoverflow.com/questions/35553751/javascript-regex-find-all-urls-outside-a-tags-nested-tags
        return preg_replace_callback('/((http?|https?):\/\/[^"<\s]+)(?![^<>]*>|[^"]*?<\/a)/', function ($matches) {
            $url = $matches[0];

            foreach ($this->acceptedUrls as $domain) {
                if (strpos($url, $domain, 0) !== false) {
                    return $this->getCodeByUrl($url);
                }
            }

            return $url;
        }, $body );
    }
}