This gives us a decent content preview on the Facebook Feed, with the title as well as the excerpt. That is where the Open Graph Protocol (OGP) comes into play an initiative developed by Facebook that allows it to recognize web content easily and display it nicely within their platform.Įxamine the following: Page rendered in Facebook feed, without Open Graph meta tags As such, it can be difficult for social media platforms like Facebook to find the correct piece of information within the content to be displayed when the page is shared on the News Feed. No two websites’ markup are created equal. => Java, PHP, and some other technological mumble jumble. Check that the included URL has a META REFRESH redirection: If (!isset( $maximumRedirections ) || $currentRedirection If (isset( $match ) & is_array ( $match ) & count ( $match ) = 2 & count ( $match ) = 1 ) If (isset( $contents ) & is_string ( $contents )) If ( count ( $originals ) = count ( $names ) & count ( $names ) = count ( $values ))įor ( $i = 0, $limiti = count ( $names ) $i htmlentities ( $originals ),įunction getUrlContents ( $url, $maximumRedirections = null, $currentRedirection = 0 ) If (isset( $match ) & is_array ( $match ) & count ( $match ) = 3 )
If (isset( $match ) & is_array ( $match ) & count ( $match ) > 0 ) Please note that the regular expressions included were split into strings because php.net was complaining about the line being to long ) Using the function getUrlContents(), also included, it takes care of META REFRESH re-directions, following up to the specified number of redirections. If there's an error, it will return false. ' print_r ( $result, true ) echo '' īased on Michael Knapp's code, and adding some regex, here's a function that will get all meta tags and the title based on a URL. If (!isset($maximumRedirections) || $currentRedirection If (isset($match) & is_array($match) & count($match) = 2 & count($match) = 1) $contents = Check if we need to go somewhere else If (version_compare(PHP_VERSION, '5.4.0') = -1)įor ($i=0, $limiti=count($names) $i htmlentities($originals, $flags, 'UTF-8'),įunction getUrlContents($url, $maximumRedirections = null, $currentRedirection = 0) If (count($originals) = count($names) & count($names) = count($values))
If (isset($match) & is_array($match) & count($match) = 4) If (isset($match) & is_array($match) & count($match) > 0) If (isset($contents) & is_string($contents)) New version based on mariano at cricava dot com's work with:ġ) Support for Meta properties (like Facebook's og tags).Ģ) Support for Unicode (UTF-8) encoded Meta lines.ģ) An option not to convert htmlentities - if you plan to actually use the results and not just display them.įunction getUrlData($url, $raw=false) // $raw - enable for raw display
#META PROPERTY OG IMAGE HEAD FOR FACEBOOK SCRAPE ARCHIVE#
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