|  | @@ 500-503 (lines=4) @@ | 
                                                            
                                    | 497 |  |                 $options[ 'class' ] = implode( ' ', $options[ 'class' ] ); | 
                                                            
                                    | 498 |  |  | 
                                                            
                                    | 499 |  |             $options[ 'class' ] = (string) $options[ 'class' ]; | 
                                                            
                                    | 500 |  |             if ( isset( $attributes[ 'class' ] ) ) | 
                                                            
                                    | 501 |  |                 $attributes[ 'class' ] = $attributes[ 'class' ] . ' ' . $options[ 'class' ]; | 
                                                            
                                    | 502 |  |             else | 
                                                            
                                    | 503 |  |                 $attributes[ 'class' ] = $options[ 'class' ]; | 
                                                            
                                    | 504 |  |  | 
                                                            
                                    | 505 |  |             $attributes[ 'class' ] = trim( $attributes[ 'class' ] ); | 
                                                            
                                    | 506 |  |         } | 
                                                                                
                                |  | @@ 509-512 (lines=4) @@ | 
                                                            
                                    | 506 |  |         } | 
                                                            
                                    | 507 |  |  | 
                                                            
                                    | 508 |  |         if ( !empty( $classes ) ) { | 
                                                            
                                    | 509 |  |             if ( isset( $attributes[ 'class' ] ) ) | 
                                                            
                                    | 510 |  |                 $attributes[ 'class' ] = $attributes[ 'class' ] . ' ' . $classes; | 
                                                            
                                    | 511 |  |             else | 
                                                            
                                    | 512 |  |                 $attributes[ 'class' ] = $classes; | 
                                                            
                                    | 513 |  |         } | 
                                                            
                                    | 514 |  |  | 
                                                            
                                    | 515 |  |         if ( isset( $options[ 'placeholder' ] ) && !empty( $options[ 'placeholder' ] ) ) { |