Welcome Dear!array(4) { ["user_id"]=> int(1) ["user_token"]=> string(6) "fsfsfs" ["partner_type"]=> int(1) ["trade_info"]=> array(3) { ["total_fee"]=> float(0.01) ["service"]=> string(22) "mobile.securitypay.pay" ["zz_product_id"]=> int(2) } } string(137) "{"user_id":1,"user_token":"fsfsfs","partner_type":1,"trade_info":{"total_fee":0.01,"service":"mobile.securitypay.pay","zz_product_id":2}}" array(4) { ["user_id"]=> int(1) ["user_token"]=> string(6) "fsfsfs" ["partner_type"]=> int(1) ["notify_str"]=> string(10) "xx=f&fs=fs" } string(78) "{"user_id":1,"user_token":"fsfsfs","partner_type":1,"notify_str":"xx=f&fs=fs"}"