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Convert youtube shortcode to includes some unique features for their users, such as the ability to embed videos using the [youtube] shortcode. Trouble arises when users migrate their blogs to a self-hosted solution using, since the format is incompatible.
In this post we will see how to create a shortcode that allows to display the [youtube] shortcode in our self-hosted blogs.

There are a bunch of approaches to this, and there are some rather complicated ones introducing preg_replace using regular expressions to obtain the URL but this is a very lightweight one that serves this purpose:

 * Convert youtube shortcode from format so it works in
 * @param array $atts Parameters
 * @return string Video embedded using iframe version
function startfunction_convert_youtube_sc( $atts ) {
    parse_str( parse_url( substr( $atts[0], 1 ), PHP_URL_QUERY ), $vars );
    return '';
add_shortcode( 'youtube', 'startfunction_convert_youtube_sc' );

you can paste the code above in your functions.php file or similar.

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