I am using infura node (rinkeby), php.
There are 3 transactions I signed with custom nonce (like the solution here) then broadcasted them by sendRawTransaction and succeeded.
After above I get 3 transaction hashs.
Though, only the first transaction can be found in block.
0x8f8e34220c0711715d34d44d4379b6c79234f2eb8da331b5121e21c9602bb4cbthe first successed and the others0xe706aa708a3f9e0c83c93d17e4d47912dfa7a5e02b68976fc1d4e8d8a2886b3e,0x871228ef50542f15f8dd6837b0a6706dfea3887c302bfeb9961cb5576607bde7not found in pending but if change to local node I can found intxpool, I think @thefett is right so I will change my code work like that – Toknsit Toknsit Apr 04 '19 at 01:27eth_getTransactionReceiptreturned a transaction ,but the problem still happend – Toknsit Toknsit Apr 04 '19 at 03:08web3p/ethereum-tx. Thenonceshould in hex. Hope this will help you – Toknsit Toknsit Apr 05 '19 at 07:29