1、使用mysqli擴展庫 預處理技術 mysqli stmt 向數據庫添加3個用戶 復制代碼 代碼如下: <?php //mysqli擴展庫 預處理技術 mysqli stmt 向數據庫添加3個用戶 //1、創建mysqli對象 $mysqli = new MySQLi("localhost","root","root","test"); if($mysqli->connect_error){ die($mysqli->conncet_error); } //2、創建預編譯對象 $sql="insert into user1(name,password,email,age) values(?,?,?,?)"; $mysqli_stmt=$mysqli->prepare($sql); //綁定參數 $name="小芳"; $password="123456"; $email="xiaofang@126.com"; $age=18; //參數綁定->給？號賦值 這里類型和順序要一致 $mysqli_stmt->bind_param("sssi",$name,$password,$email,$age); //執行 $b=$mysqli_stmt->execute(); //繼續添加 $name="小楊"; $password="123456"; $email="xiaoyang@126.com"; $age=18; //參數綁定->給？號賦值 這里類型和順序要一致 $mysqli_stmt->bind_param("sssi",$name,$password,$email,$age); //執行 $b=$mysqli_stmt->execute(); //繼續添加 $name="小G"; $password="123456"; $email="xiaoG@126.com"; $age=18; //參數綁定->給？號賦值 這里類型和順序要一致 $mysqli_stmt->bind_param("sssi",$name,$password,$email,$age); //執行 $b=$mysqli_stmt->execute(); if(!$b){ echo "操作失敗".$mysqli_stmt->error; }else{ echo "操作成功"; } //關閉預編譯 $mysqli_stmt->close(); $mysqli->close(); ?> 2、使用預處理查詢id>5的用戶id name email 復制代碼 代碼如下: <?php //使用預處理查詢id>5的用戶id name email $mysqli=new MySQLi("localhost","root","root","test"); if($mysqli->connect_error){ die($mysqli->connect_error); } //創建預編譯對象 $sql="select id,name,email from user1 where id>?"; $mysqli_stmt=$mysqli->prepare($sql); $id=5; //綁定參數 $mysqli_stmt->bind_param("i",$id); //綁定結果集 $mysqli_stmt->bind_result($id,$name,$email); //執行 $mysqli_stmt->execute(); //取出綁定的值 while($mysqli_stmt->fetch()){ echo "<br/>$id--$name--$email"; } //關閉資源 //釋放結果 $mysqli_stmt->free_result(); //關閉與編譯語句 $mysqli_stmt->close(); //關閉連接 $mysqli->close(); ?>
