Linux系统中关于Sqlite3中文乱码问题及解决办法

//打开db.db表
$db = new SQLite3(‘db.db‘);
if(!$db){
   echo $db->lastErrorMsg();
   exit;
} else {
}
$keys = array();
$students = array();
//查询
$ret = $db->query("SELECT * from student limit 50");
//将结果保存到新数组
while($row = $ret->fetchArray(SQLITE3_ASSOC) ){
   $keys = array_keys($row);
   //转换列值,防止出现乱码
   foreach($keys as $key){
      $row[$key] = mb_convert_encoding($row[$key],"gb2312","utf-8");
   }
   //添加到新数组
   array_push($students, $row);
}
$db->close();
print_r($students);