若未安装sqlite扩展,使用安装:sudo apt-get install php7.4-sqlite

<?php  
/*** 
//应用举例 
require_once('cls_sqlite.php'); 
//创建实例 
$DB=new SQLite('blog.db'); //这个数据库文件名字任意 
//创建数据库表。 
$DB->query("create table test(id integer primary key,title varchar(50))"); 
//接下来添加数据 
$DB->query("insert into test(title) values('泡菜')"); 
$DB->query("insert into test(title) values('蓝雨')"); 
$DB->query("insert into test(title) values('Ajan')"); 
$DB->query("insert into test(title) values('傲雪蓝天')"); 
//读取数据 
print_r($DB->getlist('select * from test order by id desc')); 
//更新数据 
$DB->query('update test set title = "三大" where id = 9'); 
***/  
  
class SQLite{
    function __construct($file){  
        try{  
            $this->connection=new PDO('sqlite:'.$file);  
        }  
        catch(PDOException $e){  
            try{  
                $this->connection=new PDO('sqlite2:'.$file);  
            }  
            catch(PDOException $e){  
                exit('error!');  
            }  
        }  
    }  
  
    function __destruct(){  
        $this->connection=null;  
    }  
  
    function query($sql){ //直接运行SQL,可用于更新、删除数据
        return $this->connection->query($sql);  
    }  
  
    function getlist($sql){ //取得记录列表
        $recordlist=array();  
        foreach($this->query($sql) as $rstmp){  
            $recordlist[]=$rstmp;  
        }  
        return $recordlist;  
    }  
  
    function Execute($sql){  
        return $this->query($sql)->fetch();  
    }  
  
    function RecordArray($sql){  
        return $this->query($sql)->fetchAll();  
    }  
  
    function RecordCount($sql){  
        return count($this->RecordArray($sql));  
    }  
  
    function RecordLastID(){  
        return $this->connection->lastInsertId();  
    }  
}  
?>