本文实例讲述了PHP实现的sqlite数据库连接类。分享给大家供大家参考。具体实现方法如下：
该sqlite数据库连接类就是利用了PHP与sqlite进行连接操作,代码如下:
*@param string $ limit数量
/
function getlist($table,$wheres = "1=1",$colums = '',$limits = '3000',$orderbys="id desc") {
$query = $this -> query("select ".$colums." from ".$table." where ".$wheres." order by ".$orderbys." limit ".$limits,$type,$expires,$dbname);
while($rs = $this -> fetch_array($query)){
$datas[]=$rs;
}
//print_r("select ".$colums." from ".$table." where ".$wheres." limit ".$limits);
//print_r($rs);die();
$this -> free_result($query);
return $datas ;
}
function add_one($table,$colums,$data ) {
//die("insert into ".$table." (".$colums.") values(".$data.")");
$query = $this -> query("insert into ".$table." (".$colums.") values(".$data.")",$dbname);
//return $this->insert_id();
return $query;
}
function delist($table,$idarray,$wheres="no") {
if($wheres=='no')
$query = $this -> query("delete from ".$table." where id in(".$idarray.")",$dbname);
else
$query = $this -> query("delete from ".$table." where ".$wheres,$dbname);
return $query;
}
function updatelist($table,$updatedata,$idarray) {
$query = $this -> query("update ".$table." set ". $updatedata." where id in(".$idarray.")",$dbname);
return $query;
}
//update max_vote set maxtitle='$title',maxban='$ban',
/**
- 执行sql语句，只得到一条记录
- @param string $ sql语句
- @param string $ 默认为空，可选值为 cache unbuffered
- @param int $ cache以秒为单位的生命周期
- @return array
*/
function get_one($sql,$dbname = '') {
$query = $this -> query($sql,$dbname);
$rs = $this -> fetch_array($query);
$this -> free_result($query);
return $rs ;
}
/** - 从结果集中取得一行作为关联数组
- @param resource $ 数据库查询结果资源
- @param string $ 定义返回类型
- @return array
*/
function fetch_array($query,$result_type = sqlite_assoc) {
return sqlite_fetch_array($query,$result_type);
}
/** - 取得前一次 sqlite操作所影响的记录行数
- @return int
*/
function affected_rows() {
return sqlite_changes($this -> conn);
}
/** - 取得结果集中行的数目
- @return int
*/
function num_rows($query) {
return sqlite_num_rows($query);
}
/** - 返回结果集中字段的数目
- @return int
*/
function num_fields($query) {
return sqlite_num_fields($query);
}
/** - @return array 备用,一般不用.
*/
function result($query,$row) {
return @sqlite_fetch_all($query,sqlite_assoc);
}
/** - sqlite没有相应函数
*/
function free_result($query) {
return ;
}
/** - 取得上一步 insert 操作产生的 id
- @return int
*/
function insert_id() {
return sqlite_last_insert_rowid($this -> connid);
}
/** - @return array 只得到数字索引
*/
function fetch_row($query) {
return sqlite_fetch_array($query,sqlite_num);
}
/*
/
function fetch_assoc($query) {
return $this -> fetch_array($query,sqlite_assoc);
}
/** - @return string
*/
function version() {
return sqlite_libversion();
}
function close() {
return sqlite_close($this -> conn);
}
/** - @return string
*/
function error() {
return sqlite_error_string($this -> errno);
}
/** - @return int
*/
function errno() {
return sqlite_last_error($this -> conn);
}
/** - 显示MysqL教程错误信息
*/
function halt($message = '',$sql = '') {
exit("sqlitequery:$sql
sqliteerror:" . $this -> error() . "
sqliteerrno:" . $this -> errno() . "
message:$message");
}
