                        課程
                    
                        /后端開發(fā)
                        
                            /PHP
                        
                        /PHP與MySQL關(guān)系大揭秘

為什么輸出不成功？

header("Content-type:text/html;charset=utf-8");
?? ??? ?if($age=mysqli_connect("localhost","root","000000")){
?? ??? ??? ?//echo "連接成功！";
?? ??? ?}else{
?? ??? ??? ?//echo "連接失敗！";
?? ??? ?}
?? ??? ?if(mysqli_select_db($age,"test")){
?? ??? ??? ?//echo "數(shù)據(jù)庫連接成功！";
?? ??? ?}else{
?? ??? ??? ?//echo "數(shù)據(jù)庫連接失敗！";
?? ??? ?}
?? ??? ?
?? ??? ?
?? ??? ?mysqli_query($age,"set names utf8");
?? ??? ?$query = mysqli_query($age,'select * from users');　
?? ??? ?print_r(mysqli_fetch_row($query));
?? ??? ?
?? ??? ?mysqli_close($age);

顯示的錯(cuò)誤是：

????????Parse error: syntax error, unexpected '$query2' (T_VARIABLE) in F:\demo\test02\index.php on line 22

慕仰5167399

2018-09-04

源自：PHP與MySQL關(guān)系大揭秘 3-1

關(guān)注問題我要回答

808

操作

收起

2 回答

唐朝妖孽
2018-09-05

沒問題，可以運(yùn)行

0 回復(fù) 有任何疑惑可以回復(fù)我~

收起回答

唐朝妖孽
2018-09-05

header("Content-type:text/html;charset=utf-8");
?? ??? ?if($age=mysqli_connect("localhost","root","000000")){
?? ??? ??? ?//echo "連接成功！";
?? ??? ?}else{
?? ??? ??? ?//echo "連接失?。?;
?? ??? ?}
?? ??? ?if(mysqli_select_db($age,"test")){
?? ??? ??? ?//echo "數(shù)據(jù)庫連接成功！";
?? ??? ?}else{
?? ??? ??? ?//echo "數(shù)據(jù)庫連接失敗！";
?? ??? ?}
?? ??? ?
?? ??? ?
?? ??? ?mysqli_query($age,"set names utf8");
?? ??? ?$query = mysqli_query($age,'select * from users');　
?? ??? ?print_r(mysqli_fetch_row($query));
?? ??? ?
?? ??? ?mysqli_close($age);