TP5 各种SQL语句代码封装
TP5 各种SQL语句代码封装
代码示例如下：有不好的地方希望大家讨论、留言。
where($where)->field($field)->order($order)->find();
return $result;
}
//更新数据
public function getUpdate($table,$where=array(),$params){
$result=Db::name($table)->where($where)->update($params);
return $result;
}
//插入一条数据返回id
public function getInsertGetId($table,$params){
$result=Db::name($table)->insertGetId($params);
return $result;
}
//查询多条数据
public function getSelect($table,$where=array(),$field='',$order='id desc'){
$result=Db::name($table)->where($where)->order($order)->field($field)->select();
return $result;
}
//查询有限制数据
public function getLimitSelect($table,$where=array(),$field='',$order='id desc',$limit){
$result=Db::name($table)->where($where)->order($order)->field($field)->limit($limit)->select();
return $result;
}
//数据分页
public function getPageSelect($table,$where=array(),$page=0,$pageSize=10,$order='id desc',$field=''){
$result=Db::name($table)->where($where)->order($order)->field($field)->page($page,$pageSize)->select();
return $result;
}
//删除数据
public function getDelete($table,$where=array()){
$result=Db::name($table)->where($where)->delete();
return $result;
}
//插入多条数据
public function getInsertAll($table,$data){
$result=Db::name($table)->insertAll($data);
return $result;
}
//两表连接查询
public function TwoSelectJoin($table1,$table2,$condition,$where=array(),$field='',$order=array('t1.id desc')){
$result=Db::name($table1.' t1')->join($table2.' t2',$condition)->where($where)->order($order)->field($field)->select();
return $result;
}
//两表连接查询
public function TwoFindJoin($table1,$table2,$condition,$where=array(),$field='',$order=array('t1.id desc')){
$result=Db::name($table1.' t1')->join($table2.' t2',$condition)->where($where)->order($order)->field($field)->find();
return $result;
}
//三表连接查询
public function ThreeSelectJoin($table1,$table2,$table3,$condition1,$condition2,$where=array(),$field='',$order=array('t1.id desc')){
$result=Db::name($table1.' t1')->join($table2.' t2',$condition1)->join($table3.' t3',$condition2)->where($where)->order($order)->field($field)->select();
return $result;
}
//三表连接查询
public function ThreeFindJoin($table1,$table2,$table3,$condition1,$condition2,$where=array(),$field='',$order=array('t1.id desc')){
$result=Db::name($table1.' t1')->join($table2.' t2',$condition1)->join($table3.' t3',$condition2)->where($where)->order($order)->field($field)->find();
return $result;
}
//统计某表某字段
public function getSum($table,$where=array(),$field){
$result=Db::name($table)->where($where)->sum($field);
return $result;
}
//统计某表记录数
public function getCount($table,$where=array()){
$result=Db::name($table)->where($where)->count();
return $result;
}
//查询某列查询
public function getColumn($table,$where=array(),$field='',$order='id desc'){
$result=Db::name($table)->where($where)->order($order)->column($field);
return $result;
}
//查询单个字段值
public function getValue($table,$where=array(),$value){
$result=Db::name($table)->where($where)->value($value);
return $result;
}
//查询某个字段
public function getOrderValue($table,$where=array(),$value){
$result=Db::name($table)->where($where)->value($value);
return $result;
}
//查询锁定表(队列,阻止并发)
public function getLockValue($table,$where=array(),$value,$order='id desc'){
$result=Db::name($table)->where($where)->lock(true)->value($value);
return $result;
}
}使用说明：
