Not on digital currency white list
you don't know about it
it was your relatives who brought you in to do it
if you don't know about it
don't rush to invest it
because investment is risky
if you make a wrong decision
you will lose all your money
so you must carefully observe it
and ask your relatives what kind of thing it is
in the end Make a decision when you have a thorough understanding
on September 4, 2017, the people's Bank of China and other seven ministries and commissions issued the "notice on preventing the financing risk of token issuance", which cleaned up the ICO and virtual currency trading venues. The scale of domestic virtual currency transactions decreased significantly, effectively avoiding the impact of virtual currency prices on China's financial market.
A: filter some common database operation keywords,
select, insert, update, delete, and, * etc., or filter the content through the system function addslashes
register in PHP configuration file_ globals=off; Set to off state. (the function will close the registered global variables); If receiving the value of post form, use$_ POST[' user'], If it is set to on, the value will be received by $user.
when writing SQL statements, try not to omit small quotation marks (the one above tab) and single quotation marks.
improve the skills of database naming, and name some important fields according to the characteristics of the program, so that they are not easy to be guessed.
encapsulate common methods to avoid directly exposing SQL statements.
Open PHP safe mode_ Mode = on
Open magic_ quotes_ GPC is used to prevent SQL injection. It is turned off by default. When it is turned on, it automatically converts the SQL query statement submitted by the user to & quot 39;& quot; Convert to & quot 92; 39;& quot;
control the output of error message, close the error message prompt, and write the error message to the system log
preprocess with mysqli or PDO
Nowadays, people's lives have undergone earth shaking changes. Shopping methods and work habits are being overturned. From the cash age to the Internet age, code scanning payment is becoming more and more convenient in all aspects, and the zero cash mode of clothing, food, housing and transportation has been fully realized. It must have never been thought about before. Now it is actually a reality, but this way will also say goodbye, Did you think of it? In an era of progress, there will be constant updates and iterations
according to the relevant reports, the next digital currency will be carried out in 28 regions such as Chongqing. According to this form, it will become a reality in the next few years. After the popularity of digital money, there will also be other ways of payment, but there are always lots of people who are willing to try new things. After experiencing the comparison, WeChat Alipay's two-dimensional code payment may really have to meet again. It is more secure than that. It does not need to bind the bank card, nor does it need the help of the third party platform. It's more convenient
which way do you prefer? Welcome to discuss