mysqli_connect_error(); } // 修改数据库连接字符集为 utf8 mysqli_set_charset($con,"utf8"); mysqli_close($con); ?>这样的操作在针对中文字符非常有用,很多数据库查询乱码的情况都是字符集的问题。定义和用法mysqli_set_charset() 函数规定当与数据库服务器进行数据传送时
php// 建立连接$conn=newmysqli("localhost","username","password","database");// 检查连接是否成功if($conn->connect_error){die("Connection failed: ".$conn->connect_error);}// 设置字符集为utf8if(!$conn->set_charset("utf8")){printf("Error loading character set utf8: %s\n",$conn->...
mysql_query("set names charset utf8")设置客户端字符集为UTF-8 mysql_query("set character set utf8")设置连接字符集 主要区别设置的范围不同！前者包含：client | result | connection 后者包影响的就：connection 没区别，一个是简写
utf8 has been used by MySQL in the past as an alias for the utf8mb3 character set, but this usage is now deprecated; in MySQL 8.0, SHOW statements and columns of INFORMATION_SCHEMA tables display utf8mb3 instead. For more information, see Section 1.9.2, “The utf8mb3 Character Set (...
到MySQL命令行输入“SET NAMES UTF8;”,然后执行“show variebles like“character_set_%”;”,发现原来为latin1的那些变量“character_set_client”、“character_set_connection”、“character_set_results”的值全部变为utf8了,原来是这3个变量在捣蛋。查阅手册,上面那句等于: ...
这应该是首选的用于改变字符编码的方法,不建议使用mysqli_query()执行SQL请求的SET NAMES ...(如SET NAMES utf8)。 用法: <?php$mysqli=newmysqli("localhost", "my_user", "my_password", "test");/*check connection*/if(mysqli_connect_errno()) {printf("Connect failed: %s\n",mysqli_connect...
("Initial character set: %s\n",mysqli_character_set_name($link));/* change character set to utf8 */if(!mysqli_set_charset($link,"utf8")){printf("Error loading character set utf8: %s\n",mysqli_error($link));exit();}else{printf("Current character set: %s\n",mysqli_character_...
Note that using utf8mb4 with this function may cause this function to return false, depending on the MySQL client library compiled into PHP. If the client library is older than the introduction of utf8mb4, then PHP's call of the libraries 'mysql_set_character_set' will return an error ...
我以前一直是在每次连接之前使用SET NAMES utf8语句来设定字符集,但是在mysqli里有一个mysqli_set_charset函数就是干这个的,我以为它跟我自己设定是完全一样的,但是在它的文档note里发现 This is the preferred way to change the charset. Using mysqli_query() to set it (such as SET NAMES utf8) is ...
由于日常程序使用了字符集utf8mb4,为了避免每次更新时,set names utf8mb4,就把配置文件改了,如下: [root@~]#vim /etc/my.cnf#my.cnf[client] port= 3306socket= /home/mysql/mysql.sockdefault-character-set=utf8mb4 重启MySQL服务,进入mysql时,就报错: ...