1.框架thinkphp ?支持事務代碼
public function testrollback(){
$model1 = D('item');
$model2 = D('vote');
$model1->startTrans();
$res1 = $model1->where('id = 5')->delete();
$res2 = $model2->where('id = 2')->delete();
dump($res1);
dump($res2);
if($res1 && $res2){
$model1->commit();? //只有$res1 和? $res2? 都執(zhí)行成功是才真正執(zhí)行上面的數(shù)據(jù)庫操作
dump("commit");
}else{
$model1->rollback();? //? 條件不滿足肛著，回滾
dump("rollback");
}
dump("over");
exit;
}
只支持數(shù)據(jù)庫和數(shù)據(jù)表都是 innoDB ?的情況
public function rollbackoriginal1(){
$conn = mysql_connect('127.0.0.1','summerzi','summerzi') or die('DB connection failed!');
mysql_select_db('summer',$conn);
mysql_query('set names "GBK"');
mysql_query('BEGIN');
$sql1 = "INSERT INTO `summer_userdata`(`uid`,`type`,`target_id`) VALUES(41,1,233);";
$sql2 = "INSERT INTO `summer_userdata`(`uid`,`type`,`target_id`) VALUES(fdfd,2,235);";
$res1 = mysql_query($sql1);
$res2? = mysql_query($sql2);
dump($sql1);
dump($sql2);
dump($res1);
dump($res2);
if($res1 && $res2){
mysql_query('COMMIT');
dump('commit success!');
}else{
mysql_query('ROLLBACK');
dump('commit failed, rollback!');
}
mysql_query('END');
}
對于不支持事務的MyISAM引擎數(shù)據(jù)庫可以使用表鎖定的方法
public function rollbackoriginal2(){
$conn = mysql_connect('127.0.0.1','summerzi','summerzi') or die('DB connection failed!');
mysql_select_db('summer',$conn);
mysql_query('set names "GBK"');
mysql_query('SET AUTOCOMMIT=0');////設置mysql不自動提交，需自行用commit語句提交
$sql1 = "INSERT INTO `summer_userdata`(`uid`,`type`,`target_id`) VALUES(41,1,233);";
$sql2 = "INSERT INTO `summer_userdata`(`uid`,`type`,`target_id`) VALUES(44,2,235);";
//mysql_query("LOCK TABLES `hmbl_userdata` WRITE");//鎖定表
$res1 = mysql_query($sql1);
$res2? = mysql_query($sql2);
dump($sql1);
dump($sql2);
dump($res1);
dump($res2);
//mysql_query("UNLOCK TABLES");//解除鎖定
if($res1 && $res2){
mysql_query('COMMIT');
dump('commit success!');
}else{
mysql_query('ROLLBACK');
dump('commit failed, rollback!');
}
mysql_query("SET AUTOCOMMIT=1");
mysql_query('END');
}
原文地址：https://www.cnblogs.com/summerzi/archive/2015/04/05/4393790.html
