Check for Twitter Bootstrap Loaded
There is no good way of doing this. One way is to enumerate the already registered scripts, like this: function yourplugin_add_my_stylesheet() { global $wp_styles; if ( $wp_styles instanceof WP_Styles ) { // enumerate all current styles foreach( $wp_styles->queue as $handle ) { // use the $handle to see if it’s called ‘bootstrap’ $obj = $wp_styles->registered[$handle]; … Read more