Mysql5 writing and reading garbled code solution_PHP tutorial
The example I wrote
require("adodb/adodb.inc.php" );
$conn=newadoconnection('mysql');
$conn->connect("localhost","root","2027205","bh38") or die("Connection failed") ;
$conn->execute("set names gb2312");
$conn->execute("INSERT INTO `vv` (`cc`) VALUES ('I don’t know if it will work if I change the encoding ');") or die("Error");
$rc=$conn->execute("select * from vv");
while(!$rc->EOF)
{
echo($rc->fields["cc"]);
$rc->movenext();
}
?>
Of course we do too You can modify the character set of the database through the following command
alter database da_name default character set 'charset'.
The client sends it in gbk format, and you can use the following configuration:
SET character_set_client='gbk'
SET character_set_connection='gbk'
SET character_set_results='gbk'
This configuration is equivalent to SET NAMES 'gbk'.
Now operate the database just created
mysql> use test;
Database changed
mysql> insert into mysqlcode values(null,'php enthusiast');
ERROR 1406 (22001) : Data too long for column 'content' at row 1
The character set is not specified as gbk, an error occurred during insertion
mysql> set names 'gbk';
Query OK, 0 rows affected (0.02 sec)
The specified character set is gbk
mysql> insert into mysqlcode values(null,'php lovers');
Query OK, 1 row affected (0.00 sec)
Insertion successful
mysql> select * from mysqlcode;
+----+-----------+
| id | content |
+----+-------- ---+
| 1 | php hobby |
+----+-----------+
1 row in set (0.00 sec)
In When the character set gbk is not specified, garbled characters will appear when reading, as follows
mysql> select * from mysqlcode;
+----+---------+
| id | content |
+----+---------+
| 1 | php??? |
+----+---------+
1 row in set (0.00 sec)

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