在 php UTF-8 中导出 sql

export sql in php UTF-8

我想使用 UTF-8 编码的 php 将我的数据库的所有表导出到 sql 文件中
什么是最好的方法！什么代码！
谢谢

在此之后开始您的查询：

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$db = new MySQLi("host","username","password","db");

if(!$db)
{
die("your_error_msg" . mysqli_error($db));
}

$db->set_charset("utf8");'

编辑

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<?php
//ENTER THE RELEVANT INFO BELOW
$mysqlDatabaseName ='xxxxxx';
$mysqlUserName ='xxxxxxx';
$mysqlPassword ='myPassword';
$mysqlHostName ='xxxxxxxx.net';
$mysqlExportPath ='chooseFilenameForBackup.sql';

//DO NOT EDIT BELOW THIS LINE
//Export the database and output the status to the page
$command='mysqldump --opt -h' .$mysqlHostName .' -u' .$mysqlUserName .' -p' .$mysqlPassword .' --default-character-set=utf8 ' .$mysqlDatabaseName .' > ~/' .$mysqlExportPath;
exec($command);
?>

From: export database using php code in .sql Extension?, but I added the --default-character-set=utf8 part