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Is there anyone who has developed a second-hand car trading platform (PHP)?

Has anyone developed a second-hand car trading platform (PHP) or a second-hand house trading platform? learn learn

Realccc 2018-03-19 18:32:41

USDT TRC20 transaction failed due to insufficient energy

I try to broadcast some USDT transactions every day, and after a few days, I receive OUT_OF_ENERGY messages for some transactions. I make some trades every day, sometimes I make about 30 trades. First, I tried staking about 20kTRX to gain energy and bandwidth, but it was not enough. When I triggered...

P粉412533525 2023-12-24 20:46:43

php - Ask me about mysql transactions, locks and transactions?

For example, if the account balance is 100 yuan, and if the balance is greater than the transaction amount during the transaction, the transaction will be successful. Now assuming that this user has multiple transactions at the same time, problems will occur during detection. Question: I would like ...

代言 2017-06-24 09:41:23

Method to find transaction expiry date in related table

I have a taxonomy table with different transaction categories. Each category contains a number of transactions along with their expiry dates. I want to access only those transactions and their categories whose expiry date has not yet expired, but I'm running into an issue where if transactions of a ...

P粉752812853 2023-09-13 16:19:38

Update transaction value in mongodb

I'm making a Mern project and I need to update two fields in a mongodb record. I have two fields, one is an array of objects called wallets and the other is transactions. I get an object from the frontend which includes the amount, index of the wallet where the transaction was made, as wallet is an ...

P粉546257913 2023-09-13 19:30:49

php - Multiple shops can be added to the system, and each shop has transaction records. How to design a table?

My idea is that shop is a table used to store shop information. Then there is a transaction table with the field shop_id, which stores the transaction record information of all shops. Will such a table design have any impact when the amount of data is large? Is there a better way, for example, the t...

为情所困 2017-05-24 11:34:14

No active transactions'

There is a problem with this function wipe_data This wipe_data function cleans and manages data insertion in my database but this function shows error: No active transactions This is my code: functionwipe_data(){DB::beginTransaction();$adminData=User::where ('role','admin')->first();try{User::tru...

P粉242741921 2024-02-21 11:49:10

python3.x - HTTP Error 401: UNAUTHORIZED appears when python connects to oanda's simulated trading api?

When using python3 to connect to oanda's simulated trading api, HTTP Error 401: UNAUTHORIZED appears. Newbies ask for advice: import urllib.parseimport urllib.request url = 'https://api-fxpractice.oanda....' access_token = 'a554db3a48ac8180a6996a5547ba...

漂亮男人 2017-05-18 10:56:04

Guys, is there a PHP communication group? Drop it down.

I'm new to PHP, and I still have a lot of things I don't understand. I hope there will be support from the exchange group, and I hope the experts can help me and give me some guidance. Guys, is there a PHP communication group? Drop it down.

涛哥 2023-06-14 10:04:10

python3.x - python connects oanda's simulated trading api to obtain json question second question

In the first question, we have solved the problem of connecting to oanda's simulated trading api to obtain the real-time exchange rate of EUR_USD. Thanks again to @prolifes for his enthusiastic help. The procedure is as follows: import requestsimport jsonurl = "https://api-fxpractice.oanda.com/...

迷茫 2017-05-18 10:55:43