User agent detail

	General			Device					Bot
Provider	Browser	Engine	OS	Brand	Model	Type	Is mobile	Is touch	Is bot	Name	Type	Parse time	Actions
Source result (test suite)
ua-parser/uap-core vendor/thadafinser/uap-core/tests/test_os.yaml		iOS 7.0.4											Detail Testsuite result detail `Array ( [user_agent_string] => UCWEB/2.0 (iOS; U; iPh OS 7_0_4; ru; iPh3,1) U2/1.0.0 UCBrowser/9.0.0.260 U2/1.0.0 Mobile [family] => iOS [major] => 7 [minor] => 0 [patch] => 4 [patch_minor] => )` close
Providers
BrowscapPhp 6012	UC Browser 9.0	U2	iOS 7.0	Apple	iPhone	Mobile Phone	yes	yes				0.009	Detail BrowscapPhp result detail stdClass Object ( [browser_name_regex] => /^ucweb\/.\(.ios; u; iph os 7_0.iph.\) u2\/.* ucbrowser\/9\.0.* u2\/.$/ [browser_name_pattern] => ucweb/(ios; u; iph os 7_0iph) u2/ ucbrowser/9.0* u2/* [parent] => UC Browser 9.0 [comment] => UC Browser 9.0 [browser] => UC Browser [browser_type] => Browser [browser_bits] => 32 [browser_maker] => UC Web [browser_modus] => unknown [version] => 9.0 [majorver] => 9 [minorver] => 0 [platform] => iOS [platform_version] => 7.0 [platform_description] => iPod, iPhone & iPad [platform_bits] => 32 [platform_maker] => Apple Inc [alpha] => [beta] => [win16] => [win32] => [win64] => [frames] => 1 [iframes] => 1 [tables] => 1 [cookies] => 1 [backgroundsounds] => [javascript] => 1 [vbscript] => [javaapplets] => [activexcontrols] => [ismobiledevice] => 1 [istablet] => [issyndicationreader] => [crawler] => [cssversion] => 3 [aolversion] => 0 [device_name] => iPhone [device_maker] => Apple Inc [device_type] => Mobile Phone [device_pointing_method] => touchscreen [device_code_name] => iPhone [device_brand_name] => Apple [renderingengine_name] => U2 [renderingengine_version] => unknown [renderingengine_description] => a WebKit Fork by UC Web [renderingengine_maker] => UC Web ) close
DonatjUAParser v0.5.0	UCWEB 2.0											0	Detail DonatjUAParser result detail `Array ( [platform] => [browser] => UCWEB [version] => 2.0 )` close
NeutrinoApiCom	UC Browser			Apple	iPhone 4	mobile-browser	yes					0.20002	Detail NeutrinoApiCom result detail `stdClass Object ( [mobile_screen_height] => 960 [is_mobile] => 1 [type] => mobile-browser [mobile_brand] => Apple [mobile_model] => iPhone 4 [version] => [is_android] => [browser_name] => UC Browser [operating_system_family] => unknown [operating_system_version] => [is_ios] => 1 [producer] => UCWEB Technology Ltd. [operating_system] => unknown [mobile_screen_width] => 640 [mobile_browser] => UCWeb )` close
PiwikDeviceDetector 3.5.2	UC Browser 9.0		iOS 7.0	Apple	iPhone 4	smartphone	yes					0.003	Detail PiwikDeviceDetector result detail Array ( [client] => Array ( [type] => browser [name] => UC Browser [short_name] => UC [version] => 9.0 [engine] => ) [operatingSystem] => Array ( [name] => iOS [short_name] => IOS [version] => 7.0 [platform] => ) [device] => Array ( [brand] => AP [brandName] => Apple [model] => iPhone 4 [device] => 1 [deviceName] => smartphone ) [bot] => [extra] => Array ( [isBot] => [isBrowser] => 1 [isFeedReader] => [isMobileApp] => [isPIM] => [isLibrary] => [isMediaPlayer] => [isCamera] => [isCarBrowser] => [isConsole] => [isFeaturePhone] => [isPhablet] => [isPortableMediaPlayer] => [isSmartDisplay] => [isSmartphone] => 1 [isTablet] => [isTV] => [isDesktop] => [isMobile] => 1 [isTouchEnabled] => ) ) close
SinergiBrowserDetector 6.0.0	No result found
UAParser v3.4.5	UC Browser 9.0.0		iOS 7.0.4									0.009	Detail UAParser result detail `UAParser\Result\Client Object ( [ua] => UAParser\Result\UserAgent Object ( [major] => 9 [minor] => 0 [patch] => 0 [family] => UC Browser ) [os] => UAParser\Result\OperatingSystem Object ( [major] => 7 [minor] => 0 [patch] => 4 [patchMinor] => [family] => iOS ) [device] => UAParser\Result\Device Object ( [brand] => [model] => [family] => Other ) [originalUserAgent] => UCWEB/2.0 (iOS; U; iPh OS 7_0_4; ru; iPh3,1) U2/1.0.0 UCBrowser/9.0.0.260 U2/1.0.0 Mobile )` close
UserAgentStringCom	UC Browser 2.0											0.10801	Detail UserAgentStringCom result detail `stdClass Object ( [agent_type] => Mobile Browser [agent_name] => UC Browser [agent_version] => 2.0 [os_type] => unknown [os_name] => unknown [os_versionName] => [os_versionNumber] => [os_producer] => [os_producerURL] => [linux_distibution] => Null [agent_language] => Russian [agent_languageTag] => ru )` close
WhatIsMyBrowserCom	UC Browser 9.0.0.260				Mobile							0.40204	Detail WhatIsMyBrowserCom result detail stdClass Object ( [operating_system_name] => [simple_sub_description_string] => [simple_browser_string] => UC Browser 9 on Mobile [browser_version] => 9 [extra_info] => Array ( ) [operating_platform] => Mobile [extra_info_table] => Array ( ) [layout_engine_name] => [detected_addons] => Array ( ) [operating_system_flavour_code] => [hardware_architecture] => [operating_system_flavour] => [operating_system_frameworks] => Array ( ) [browser_name_code] => uc-browser [operating_system_version] => [simple_operating_platform_string] => [is_abusive] => [layout_engine_version] => [browser_capabilities] => Array ( ) [operating_platform_vendor_name] => [operating_system] => [operating_system_version_full] => [operating_platform_code] => [browser_name] => UC Browser [operating_system_name_code] => [user_agent] => UCWEB/2.0 (iOS; U; iPh OS 7_0_4; ru; iPh3,1) U2/1.0.0 UCBrowser/9.0.0.260 U2/1.0.0 Mobile [browser_version_full] => 9.0.0.260 [browser] => UC Browser 9 ) close
WhichBrowser 2.0.10	UC Browser 9.0	Gecko	iOS 7.0.4	Apple	iPhone 4	mobile:smart	yes					0.004	Detail WhichBrowser result detail `Array ( [browser] => Array ( [name] => UC Browser [version] => 9.0 [type] => browser ) [engine] => Array ( [name] => Gecko ) [os] => Array ( [name] => iOS [version] => 7.0.4 ) [device] => Array ( [type] => mobile [subtype] => smart [manufacturer] => Apple [model] => iPhone 4 ) )` close
Woothee v1.2.0	No result found
Wurfl 1.6.4	UC Web Browser on iOS 9		iOS 7.0.4	Apple	iPhone 4	Smartphone	yes	yes				0.018	Detail Wurfl result detail Array ( [virtual] => Array ( [is_android] => false [is_ios] => true [is_windows_phone] => false [is_app] => true [is_full_desktop] => false [is_largescreen] => true [is_mobile] => true [is_robot] => false [is_smartphone] => true [is_touchscreen] => true [is_wml_preferred] => false [is_xhtmlmp_preferred] => false [is_html_preferred] => true [advertised_device_os] => iOS [advertised_device_os_version] => 7.0.4 [advertised_browser] => UC Web Browser on iOS [advertised_browser_version] => 9 [complete_device_name] => Apple iPhone 4 [form_factor] => Smartphone [is_phone] => true [is_app_webview] => false ) [all] => Array ( [brand_name] => Apple [model_name] => iPhone 4 [unique] => true [ununiqueness_handler] => [is_wireless_device] => true [device_claims_web_support] => true [has_qwerty_keyboard] => true [can_skip_aligned_link_row] => true [uaprof] => [uaprof2] => [uaprof3] => [nokia_series] => 0 [nokia_edition] => 0 [device_os] => iOS [mobile_browser] => UCWeb [mobile_browser_version] => 9 [device_os_version] => 7.0 [pointing_method] => touchscreen [release_date] => 2013_june [marketing_name] => [model_extra_info] => 7.0 [nokia_feature_pack] => 0 [can_assign_phone_number] => true [is_tablet] => false [manufacturer_name] => [is_bot] => false [is_google_glass] => false [proportional_font] => false [built_in_back_button_support] => false [card_title_support] => false [softkey_support] => false [table_support] => false [numbered_menus] => false [menu_with_select_element_recommended] => false [menu_with_list_of_links_recommended] => false [icons_on_menu_items_support] => false [break_list_of_links_with_br_element_recommended] => false [access_key_support] => false [wrap_mode_support] => false [times_square_mode_support] => false [deck_prefetch_support] => false [elective_forms_recommended] => false [wizards_recommended] => false [image_as_link_support] => false [insert_br_element_after_widget_recommended] => false [wml_can_display_images_and_text_on_same_line] => false [wml_displays_image_in_center] => false [opwv_wml_extensions_support] => false [wml_make_phone_call_string] => none [chtml_display_accesskey] => false [emoji] => false [chtml_can_display_images_and_text_on_same_line] => false [chtml_displays_image_in_center] => false [imode_region] => none [chtml_make_phone_call_string] => tel: [chtml_table_support] => false [xhtml_honors_bgcolor] => true [xhtml_supports_forms_in_table] => false [xhtml_support_wml2_namespace] => false [xhtml_autoexpand_select] => false [xhtml_select_as_dropdown] => false [xhtml_select_as_radiobutton] => false [xhtml_select_as_popup] => false [xhtml_display_accesskey] => false [xhtml_supports_invisible_text] => false [xhtml_supports_inline_input] => false [xhtml_supports_monospace_font] => false [xhtml_supports_table_for_layout] => true [xhtml_supports_css_cell_table_coloring] => true [xhtml_format_as_css_property] => true [xhtml_format_as_attribute] => false [xhtml_nowrap_mode] => false [xhtml_marquee_as_css_property] => false [xhtml_readable_background_color1] => #D9EFFF [xhtml_readable_background_color2] => #FFFFFF [xhtml_allows_disabled_form_elements] => false [xhtml_document_title_support] => true [xhtml_preferred_charset] => utf8 [opwv_xhtml_extensions_support] => false [xhtml_make_phone_call_string] => tel: [xhtmlmp_preferred_mime_type] => text/html [xhtml_table_support] => true [xhtml_send_sms_string] => sms: [xhtml_send_mms_string] => none [xhtml_file_upload] => supported [cookie_support] => true [accept_third_party_cookie] => false [xhtml_supports_iframe] => full [xhtml_avoid_accesskeys] => false [xhtml_can_embed_video] => none [ajax_support_javascript] => true [ajax_manipulate_css] => true [ajax_support_getelementbyid] => true [ajax_support_inner_html] => true [ajax_xhr_type] => standard [ajax_manipulate_dom] => true [ajax_support_events] => true [ajax_support_event_listener] => true [ajax_preferred_geoloc_api] => w3c_api [xhtml_support_level] => 4 [preferred_markup] => html_web_4_0 [wml_1_1] => false [wml_1_2] => false [wml_1_3] => false [html_wi_w3_xhtmlbasic] => true [html_wi_oma_xhtmlmp_1_0] => true [html_wi_imode_html_1] => false [html_wi_imode_html_2] => false [html_wi_imode_html_3] => false [html_wi_imode_html_4] => false [html_wi_imode_html_5] => false [html_wi_imode_htmlx_1] => false [html_wi_imode_htmlx_1_1] => false [html_wi_imode_compact_generic] => true [html_web_3_2] => true [html_web_4_0] => true [voicexml] => false [multipart_support] => false [total_cache_disable_support] => false [time_to_live_support] => false [resolution_width] => 640 [resolution_height] => 960 [columns] => 20 [max_image_width] => 320 [max_image_height] => 480 [rows] => 20 [physical_screen_width] => 50 [physical_screen_height] => 74 [dual_orientation] => true [density_class] => 1.0 [wbmp] => false [bmp] => true [epoc_bmp] => false [gif_animated] => true [jpg] => true [png] => true [tiff] => false [transparent_png_alpha] => false [transparent_png_index] => false [svgt_1_1] => true [svgt_1_1_plus] => false [greyscale] => false [gif] => true [colors] => 65536 [webp_lossy_support] => false [webp_lossless_support] => false [post_method_support] => true [basic_authentication_support] => true [empty_option_value_support] => true [emptyok] => false [nokia_voice_call] => false [wta_voice_call] => false [wta_phonebook] => false [wta_misc] => false [wta_pdc] => false [https_support] => true [phone_id_provided] => false [max_data_rate] => 200 [wifi] => true [sdio] => false [vpn] => true [has_cellular_radio] => true [max_deck_size] => 100000 [max_url_length_in_requests] => 512 [max_url_length_homepage] => 0 [max_url_length_bookmark] => 0 [max_url_length_cached_page] => 0 [max_no_of_connection_settings] => 0 [max_no_of_bookmarks] => 0 [max_length_of_username] => 0 [max_length_of_password] => 0 [max_object_size] => 0 [downloadfun_support] => false [directdownload_support] => false [inline_support] => false [oma_support] => false [ringtone] => true [ringtone_3gpp] => false [ringtone_midi_monophonic] => true [ringtone_midi_polyphonic] => true [ringtone_imelody] => false [ringtone_digiplug] => false [ringtone_compactmidi] => false [ringtone_mmf] => false [ringtone_rmf] => false [ringtone_xmf] => false [ringtone_amr] => true [ringtone_awb] => false [ringtone_aac] => true [ringtone_wav] => true [ringtone_mp3] => true [ringtone_spmidi] => false [ringtone_qcelp] => false [ringtone_voices] => 12 [ringtone_df_size_limit] => 0 [ringtone_directdownload_size_limit] => 0 [ringtone_inline_size_limit] => 0 [ringtone_oma_size_limit] => 0 [wallpaper] => false [wallpaper_max_width] => 320 [wallpaper_max_height] => 480 [wallpaper_preferred_width] => 320 [wallpaper_preferred_height] => 480 [wallpaper_resize] => none [wallpaper_wbmp] => false [wallpaper_bmp] => false [wallpaper_gif] => false [wallpaper_jpg] => false [wallpaper_png] => false [wallpaper_tiff] => false [wallpaper_greyscale] => false [wallpaper_colors] => 2 [wallpaper_df_size_limit] => 0 [wallpaper_directdownload_size_limit] => 0 [wallpaper_inline_size_limit] => 0 [wallpaper_oma_size_limit] => 0 [screensaver] => false [screensaver_max_width] => 0 [screensaver_max_height] => 0 [screensaver_preferred_width] => 0 [screensaver_preferred_height] => 0 [screensaver_resize] => none [screensaver_wbmp] => false [screensaver_bmp] => false [screensaver_gif] => false [screensaver_jpg] => false [screensaver_png] => false [screensaver_greyscale] => false [screensaver_colors] => 2 [screensaver_df_size_limit] => 0 [screensaver_directdownload_size_limit] => 0 [screensaver_inline_size_limit] => 0 [screensaver_oma_size_limit] => 0 [picture] => false [picture_max_width] => 0 [picture_max_height] => 0 [picture_preferred_width] => 0 [picture_preferred_height] => 0 [picture_resize] => none [picture_wbmp] => false [picture_bmp] => false [picture_gif] => false [picture_jpg] => false [picture_png] => false [picture_greyscale] => false [picture_colors] => 2 [picture_df_size_limit] => 0 [picture_directdownload_size_limit] => 0 [picture_inline_size_limit] => 0 [picture_oma_size_limit] => 0 [video] => true [oma_v_1_0_forwardlock] => false [oma_v_1_0_combined_delivery] => false [oma_v_1_0_separate_delivery] => false [streaming_video] => true [streaming_3gpp] => true [streaming_mp4] => true [streaming_mov] => false [streaming_video_size_limit] => 0 [streaming_real_media] => none [streaming_flv] => false [streaming_3g2] => false [streaming_vcodec_h263_0] => 30 [streaming_vcodec_h263_3] => -1 [streaming_vcodec_mpeg4_sp] => 3 [streaming_vcodec_mpeg4_asp] => 3 [streaming_vcodec_h264_bp] => 3.0 [streaming_acodec_amr] => nb [streaming_acodec_aac] => lc [streaming_wmv] => none [streaming_preferred_protocol] => http [streaming_preferred_http_protocol] => apple_live_streaming [wap_push_support] => false [connectionless_service_indication] => false [connectionless_service_load] => false [connectionless_cache_operation] => false [connectionoriented_unconfirmed_service_indication] => false [connectionoriented_unconfirmed_service_load] => false [connectionoriented_unconfirmed_cache_operation] => false [connectionoriented_confirmed_service_indication] => false [connectionoriented_confirmed_service_load] => false [connectionoriented_confirmed_cache_operation] => false [utf8_support] => true [ascii_support] => false [iso8859_support] => false [expiration_date] => false [j2me_cldc_1_0] => false [j2me_cldc_1_1] => false [j2me_midp_1_0] => false [j2me_midp_2_0] => false [doja_1_0] => false [doja_1_5] => false [doja_2_0] => false [doja_2_1] => false [doja_2_2] => false [doja_3_0] => false [doja_3_5] => false [doja_4_0] => false [j2me_jtwi] => false [j2me_mmapi_1_0] => false [j2me_mmapi_1_1] => false [j2me_wmapi_1_0] => false [j2me_wmapi_1_1] => false [j2me_wmapi_2_0] => false [j2me_btapi] => false [j2me_3dapi] => false [j2me_locapi] => false [j2me_nokia_ui] => false [j2me_motorola_lwt] => false [j2me_siemens_color_game] => false [j2me_siemens_extension] => false [j2me_heap_size] => 0 [j2me_max_jar_size] => 0 [j2me_storage_size] => 0 [j2me_max_record_store_size] => 0 [j2me_screen_width] => 0 [j2me_screen_height] => 0 [j2me_canvas_width] => 0 [j2me_canvas_height] => 0 [j2me_bits_per_pixel] => 0 [j2me_audio_capture_enabled] => false [j2me_video_capture_enabled] => false [j2me_photo_capture_enabled] => false [j2me_capture_image_formats] => none [j2me_http] => false [j2me_https] => false [j2me_socket] => false [j2me_udp] => false [j2me_serial] => false [j2me_gif] => false [j2me_gif89a] => false [j2me_jpg] => false [j2me_png] => false [j2me_bmp] => false [j2me_bmp3] => false [j2me_wbmp] => false [j2me_midi] => false [j2me_wav] => false [j2me_amr] => false [j2me_mp3] => false [j2me_mp4] => false [j2me_imelody] => false [j2me_rmf] => false [j2me_au] => false [j2me_aac] => false [j2me_realaudio] => false [j2me_xmf] => false [j2me_wma] => false [j2me_3gpp] => false [j2me_h263] => false [j2me_svgt] => false [j2me_mpeg4] => false [j2me_realvideo] => false [j2me_real8] => false [j2me_realmedia] => false [j2me_left_softkey_code] => 0 [j2me_right_softkey_code] => 0 [j2me_middle_softkey_code] => 0 [j2me_select_key_code] => 0 [j2me_return_key_code] => 0 [j2me_clear_key_code] => 0 [j2me_datefield_no_accepts_null_date] => false [j2me_datefield_broken] => false [receiver] => true [sender] => true [mms_max_size] => 1048576 [mms_max_height] => 1024 [mms_max_width] => 1024 [built_in_recorder] => false [built_in_camera] => true [mms_jpeg_baseline] => true [mms_jpeg_progressive] => true [mms_gif_static] => true [mms_gif_animated] => true [mms_png] => true [mms_bmp] => true [mms_wbmp] => false [mms_amr] => true [mms_wav] => false [mms_midi_monophonic] => false [mms_midi_polyphonic] => false [mms_midi_polyphonic_voices] => 0 [mms_spmidi] => false [mms_mmf] => false [mms_mp3] => true [mms_evrc] => false [mms_qcelp] => false [mms_ota_bitmap] => false [mms_nokia_wallpaper] => false [mms_nokia_operatorlogo] => false [mms_nokia_3dscreensaver] => false [mms_nokia_ringingtone] => false [mms_rmf] => false [mms_xmf] => false [mms_symbian_install] => false [mms_jar] => false [mms_jad] => false [mms_vcard] => true [mms_vcalendar] => false [mms_wml] => false [mms_wbxml] => false [mms_wmlc] => false [mms_video] => true [mms_mp4] => true [mms_3gpp] => true [mms_3gpp2] => true [mms_max_frame_rate] => 0 [nokiaring] => false [picturemessage] => false [operatorlogo] => false [largeoperatorlogo] => false [callericon] => false [nokiavcard] => false [nokiavcal] => false [sckl_ringtone] => false [sckl_operatorlogo] => false [sckl_groupgraphic] => false [sckl_vcard] => false [sckl_vcalendar] => false [text_imelody] => false [ems] => false [ems_variablesizedpictures] => false [ems_imelody] => false [ems_odi] => false [ems_upi] => false [ems_version] => 0 [siemens_ota] => false [siemens_logo_width] => 101 [siemens_logo_height] => 29 [siemens_screensaver_width] => 101 [siemens_screensaver_height] => 50 [gprtf] => false [sagem_v1] => false [sagem_v2] => false [panasonic] => false [sms_enabled] => true [wav] => false [mmf] => false [smf] => false [mld] => false [midi_monophonic] => false [midi_polyphonic] => false [sp_midi] => false [rmf] => false [xmf] => false [compactmidi] => false [digiplug] => false [nokia_ringtone] => false [imelody] => false [au] => false [amr] => false [awb] => false [aac] => true [mp3] => true [voices] => 1 [qcelp] => false [evrc] => false [flash_lite_version] => [fl_wallpaper] => false [fl_screensaver] => false [fl_standalone] => false [fl_browser] => false [fl_sub_lcd] => false [full_flash_support] => false [css_supports_width_as_percentage] => true [css_border_image] => webkit [css_rounded_corners] => webkit [css_gradient] => webkit [css_spriting] => true [css_gradient_linear] => webkit [is_transcoder] => false [transcoder_ua_header] => user-agent [rss_support] => true [pdf_support] => true [progressive_download] => true [playback_vcodec_h263_0] => 30 [playback_vcodec_h263_3] => -1 [playback_vcodec_mpeg4_sp] => 3 [playback_vcodec_mpeg4_asp] => 2 [playback_vcodec_h264_bp] => 3.0 [playback_real_media] => none [playback_3gpp] => true [playback_3g2] => true [playback_mp4] => true [playback_mov] => true [playback_acodec_amr] => nb [playback_acodec_aac] => lc [playback_df_size_limit] => 0 [playback_directdownload_size_limit] => 0 [playback_inline_size_limit] => 0 [playback_oma_size_limit] => 0 [playback_acodec_qcelp] => false [playback_wmv] => none [hinted_progressive_download] => false [html_preferred_dtd] => html4 [viewport_supported] => true [viewport_width] => device_width_token [viewport_userscalable] => no [viewport_initial_scale] => [viewport_maximum_scale] => [viewport_minimum_scale] => [mobileoptimized] => false [handheldfriendly] => false [canvas_support] => full [image_inlining] => true [is_smarttv] => false [is_console] => false [nfc_support] => false [ux_full_desktop] => false [jqm_grade] => A [is_sencha_touch_ok] => true [controlcap_is_smartphone] => default [controlcap_is_ios] => default [controlcap_is_android] => default [controlcap_is_robot] => default [controlcap_is_app] => default [controlcap_advertised_device_os] => default [controlcap_advertised_device_os_version] => default [controlcap_advertised_browser] => default [controlcap_advertised_browser_version] => default [controlcap_is_windows_phone] => default [controlcap_is_full_desktop] => default [controlcap_is_largescreen] => default [controlcap_is_mobile] => default [controlcap_is_touchscreen] => default [controlcap_is_wml_preferred] => default [controlcap_is_xhtmlmp_preferred] => default [controlcap_is_html_preferred] => default [controlcap_form_factor] => default [controlcap_complete_device_name] => default ) ) close

About this comparison

The primary goal of this project is simple
I wanted to know which user agent parser is the most accurate in each part - device detection, bot detection and so on...

The secondary goal is to provide a source for all user agent parsers to improve their detection based on this results.

You can also improve this further, by suggesting ideas at ThaDafinser/UserAgentParserComparison

The comparison is based on the abstraction by ThaDafinser/UserAgentParser

Comparison created 2016-02-13 13:42:16 | by ThaDafinser