US Carriers mobile network frequencies ?

 

Mobile carriers utilize different frequencies on their networks, and knowing phone compatibility with the carrier network can definitely help in making more educated decisions.
List of frequency bands used by major US mobile carriers:
AT&T
850, 1900 MHz - 2G/3G/4G (GPRS/EDGE and UMTS/HSPA/HSPA+)
700, 1700/2100 MHz - 4G (LTE bands 2, 4, 17)
Verizon

根据用户组( role ),设置产品的价格.

{ "rules_elite_role_price" : {
    "LABEL" : "Elite role price",
    "PLUGIN" : "reaction rule",
    "OWNER" : "rules",
    "REQUIRES" : [ "rules", "commerce_line_item", "commerce_product_reference" ],
    "ON" : { "commerce_product_calculate_sell_price" : [] },
    "IF" : [
      { "entity_has_field" : { "entity" : [ "commerce-line-item" ], "field" : "commerce_product" } },
      { "user_has_role" : {

WD php: ParseError: syntax error, unexpected ',' in features_get_normal() (line 29 of 一个hierarchical_select版本有关的错误.

WD php: ParseError: syntax error, unexpected ',' in features_get_normal() (line 29 of                                     [error]
/home/nginx/domains/hi.thatk.com/public/sites/all/modules/features/features.export.inc(749) : eval()'d code).