php – sonata_type_datetime_picker初始日期

我知道我在创建datepicker时有这个选项：

"action","attr","auto_initialize","block_name","by_reference","cascade_validation","compound","constraints","csrf_field_name","csrf_message","csrf_protection","csrf_provider","data","data_class","date_format","date_widget","datepicker_use_button","days","disabled","dp_days_of_week_disabled","dp_default_date","dp_disabled_dates","dp_enabled_dates","dp_icons","dp_language","dp_max_date","dp_min_date","dp_minute_stepping","dp_pick_time","dp_show_today","dp_side_by_side","dp_use_current","dp_use_minutes","dp_use_seconds","dp_use_strict","empty_data","empty_value","error_bubbling","error_mapping","extra_fields_message","format","horizontal_input_wrapper_class","horizontal_label_class","horizontal_label_offset_class","hours","inherit_data","input","intention","invalid_message","invalid_message_parameters","label","label_attr","label_render","mapped","max_length","method","minutes","model_timezone","months","pattern","post_max_size_message","property_path","read_only","required","seconds","sonata_admin","sonata_field_description","sonata_help","time_widget","translation_domain","trim","validation_groups","view_timezone","virtual","widget","with_minutes","with_seconds","years"

我尝试使用“dp_default_date”,但它在页面刷新时填充空输入. “小时”和“分钟”不起作用.