'http://twitter.com/share', 'class' => 'twitter-share-button', 'data-count' => 'horizontal', 'data-via' => $account, 'data-lang' => 'ja', 'data-url' => get_permalink(), ); $button = ' $val) { $button .= " $key=\"$val\""; } $button .= '>Tweet'; $button .= ''; $button = "

$button

"; return $button; } add_filter('the_content', 'bps_tweet_button_filter');