$m=D('YourModel');
$m2=D('YouModel2');
$m->startTrans();
$result=$m->where('删除条件')->delete();
$result2=m2->where('删除条件')->delete();
if($result && $result2){
$m->commit();
}else{
$m->rollback();
}
$servername="localhost";
$username="root";
$password="admin";
$dbname="test";
try{
$conn=new PDO("mysql:host=$servername;dbname=$dbname",$username,$password);
$conn->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
$conn->beginTransaction();
$conn->exec("INSERT INTO `hello`(`firstname`,`lastname`,`email`)VALUES('YE','XIAMING','yexianming@163.com')");
$conn->exec("INSERT INTO `hello`(`firstname`,`lastname`,`email`)VALUES('YE','CONG','yecong@163.com')");
$conn->exec("INSERT INTO `hello`(`firstname`,`lastname`,`email`)VALUES('FANG','MENG','fangmeng@168.com')");
$conn->commit();
echo "New records created successfully!";
}catch(PDOException $e){
$conn->rollBack();
echo $sql."<br>".$e->getMessage();
}
$conn=NULL;