<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <?php //PDO：数据访问抽象层 //dsn：数据源 //1.带有事务功能： $dsn="mysql:host=localhost;dbname=bilibili"; //造PDO对象 $pdo=new PDO($dsn,"root",""); //设置为异常模式 $pdo->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION ); try { //写SQL语句 $sql="insert into nation values ('n007','白族')"; $sql1="insert into nation values ('n002','白族')"; //$sql2="insert into nation values ('n008','白族')"; //启动事务 $pdo->beginTransaction(); //执行SQL语句 $pdo->exec($sql); $pdo->exec($sql1); //$pdo->exec($sql2); $pdo->commit(); } catch (PDOException $e) { //echo $e->getMessage(); //回滚事务 $pdo->rollBack(); } /*foreach($a as $v) { var_dump($v); } */ ?> </body> </html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <?php //2.防止SQL注入攻击 $dsn="mysql:host=localhost;dbname=bilibili"; $pdo=new PDO($dsn,"root",""); $sql="insert into nation values(?,?)"; //将一条SQL语句放到服务器等待执行 $stm=$pdo->prepare($sql); /*//绑定参数 $stm->bindParam(1,$code); $stm->bindParam(2,$name); //给变量赋值 $code="n030"; $name="蒙古";*/ $attr=array("n031","壮族"); //执行预处理语句,执行成功返回true，执行失败返回false if($stm->execute($attr)) { //var_dump($stm->fetch()); //var_dump($stm->fetchAll(PDO::FETCH_ASSOC)); } ?> </body> </html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> </head> <body> <?php //2.防止SQL注入攻击 $dsn="mysql:host=localhost;dbname=bilibili"; $pdo=new PDO($dsn,"root",""); $sql="insert into nation values(:code,:name)"; //将一条SQL语句放到服务器等待执行 $stm=$pdo->prepare($sql); /*//绑定参数 $stm->bindParam(1,$code); $stm->bindParam(2,$name); //给变量赋值 $code="n030"; $name="蒙古";*/ $attr=array("code"=>"n032","name"=>"土家"); //执行预处理语句,执行成功返回true，执行失败返回false if($stm->execute($attr)) { //var_dump($stm->fetch()); //var_dump($stm->fetchAll(PDO::FETCH_ASSOC)); } ?> </body> </html>