代码：
function wp_embed_handler_youku( $matches, $attr, $url, $rawattr ) {
// If the user supplied a fixed width AND height, use it
if ( !empty($rawattr['width']) && !empty($rawattr['height']) ) {
$width = (int) $rawattr['width'];
$height = (int) $rawattr['height'];
} else {
list( $width, $height ) = wp_expand_dimensions( 480, 400, $attr['width'], $attr['height'] );
}
return apply_filters( 'embed_youku', '<embed src="http://player.youku.com/player.php/sid/' . esc_attr($matches[1]) . '/v.swf" quality="high" width="' . esc_attr($width) . '" height="' . esc_attr($height) . '" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash"></embed>', $matches, $attr, $url, $rawattr );
}
wp_embed_register_handler( 'youku', '#http://v.youku.com/v_show/id_(.*?).html#i', 'wp_embed_handler_youku' );使用：
如：
http://v.youku.com/v_show/id_XXXXXXXXXXXXX.html
或者
[embed]http://v.youku.com/v_show/id_XXXXXXXXXXXXX.html[/embed]
其中 XXXXXXX 是视频的 ID
