PHPMYSQL garbled problem, use SETNAMESutf8 to correct _ PHP Tutorial-php Tutorial

If PHPMYSQL is garbled, use SETNAMESutf8 for correction. Write it down first, so that you won't be able to remember it again! When using PHP to operate the database, the data in the database is UTF-8 encoded. when reading the data, all the information displayed is ??????? The question mark is garbled. if you find something, write it down first, so that you won't be able to think about it again!
When using PHP to operate the database, the data in the database is UTF-8 encoded. when reading the data, all the information displayed is ??????? The question mark is garbled. I found some information and made a encoding setting before reading it:

The code is as follows:

Create table tablename
(
Id int not null auto_increment,
Title varchar (20) not null,
Contnet varchar (300) defalut null,
Primary key ('id ')
) Begin = MyISAM default charset = UTF8;

Run the following command before inserting data:

The code is as follows:

Mysql_query ("set names utf8 ");

Then
Mysql_query ("insert into tablename .....")

Run the following command before reading data:

The code is as follows:

Mysql_query ("set names utf8 ");

Then mysql_query ("select * from tablename ")
Note: the encoding read here is output after the original encoding content is re-encoded. for example, if the output content is located on the GBK encoding page, garbled characters are displayed on the page, therefore, execute mysql_query ("set names gbk") before the query to display the GBK-encoded text content on the page.

Success! When using PHP to operate the database, the data in the database is UTF-8 encoded. when reading the data, all the information displayed is ??????? Garbled question marks, found some...