Mysql
Mysqli 訪問被拒絕，使用 UNIX 套接字
我正在嘗試學習 PHP，並且正在設置數據庫連接。
在 Mysql Workbench 上，我創建了一個名為 php 的數據庫，並創建了一個表。然後我使用 auth_socket 創建了帳戶“sam”@“localhost”，（我使用的是 Ubuntu 桌面，並且
sam是 的輸出whoami），Granted ALL on 。，當我按ctrl+alt+T輸入mysql並按時enter，我可以成功登錄。現在我跟著https://www.php.net/manual/en/mysqli.quickstart.connections.php，並嘗試使用套接字，我失敗了。
2021/08/13 16:54:35 [error] 1363#1363: *11 FastCGI sent in stderr: "PHP message: PHP Warning: mysqli::__construct(): (HY000/1698): Access denied for user 'sam'@'localhost' in /var/www/php/my2.php on line 3PHP message: PHP Warning: main(): Couldn't fetch mysqli in /var/www/php/my2.php on line 5" while reading response header from upstream, client: 127.0.0.1, server: _, request: "GET /my2.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.4-fpm.sock:", host: "localhost:803"這是我的程式碼。<?php
$mysqli = new mysqli("localhost", "sam", Null, "php"); echo $mysqli->host_info . "\n";輸出在瀏覽器中什麼都沒有。
然後我嘗試了這個。
<html> <head> <title>Connecting MySQL Server</title> </head> <body> <?php $dbhost = 'localhost'; $dbuser = 'sam'; //$dbpass = 'root@123'; $mysqli = new mysqli($dbhost, $dbuser,NULL,NULL,NULL,"/run/mysqld/mysqld.sock"); if($mysqli->connect_errno ) { printf("Connect failed: %s<br />", $mysqli->connect_error); exit(); } printf('Connected successfully.<br />'); $mysqli->close(); ?> </body> </html>輸出是
Connect failed: Access denied for user 'sam'@'localhost'帶日誌
2021/08/13 16:59:17 [error] 1363#1363: *13 FastCGI sent in stderr: "PHP message: PHP Warning: mysqli::__construct(): (HY000/1698): Access denied for user 'sam'@'localhost' in /var/www/php/mysqli.php on line 10" while reading response header from upstream, client: 127.0.0.1, server: _, request: "GET /mysqli.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.4-fpm.sock:", host: "localhost:803"我沒有
sammysql使用者的密碼。MariaDB [mysql]> select user,password from user; +-----------+-------------------------------------------+ | user | password | +-----------+-------------------------------------------+ | root | | | someone | *2470C0C06DEE42FD1618BB99005ADCA2EC9D1E19 | | someone | *9B8A3238012965AC630589D859535EA0B7C231A7 | | someone | *AF411B6C73B3AC3A2316A309A71758175CC14FEE | | someone | *D76A454D84260E84578F09915624F275F3D0E08B | | sam | | +-----------+-------------------------------------------+ 6 rows in set (0.001 sec)我將實際使用者名更改為某人以保護隱私。你可以看到
sam沒有密碼。
使用您的 Mysql Workbench 為使用者設置密碼，
sam並使用該密碼連接 mysqli 庫。我不知道 Mysql Workbench 是否有點擊選項，如果沒有，或者您更喜歡 SQL 方式，請使用以下內容：CREATE USER 'sam'@'localhost' IDENTIFIED BY 'choose_a_safe_password'