Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。 get( 'cdn' ); if ( $cdn && method_exists( $cdn, 'get_cdn_urls' ) ) { $url = $cdn->get_cdn_urls( [ 'all', 'images' ] ); } } if ( ! isset( $url )