mysql “access denied for user” (only happens when connecting via php)

问题

I created user dashboard and granted it various privileges (such as SHOW DATABASES). I initially set the Host=[private ip of web-server], but kept getting access denied errors returned from php's mysql_connect, so I set Host=192.168.% so any machine on our network can access it.

I can successfully connect to the mysql Db on the Db server from my Mac using MySQLWorkbench (and successfully ran SHOW DATABASES;), but when I just try to connect via php on our webserver, I just get: Access denied for user 'dashboard'@'192.168.xx.xx' (using password: YES)

the code i'm using in php is:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<head>
<?php
$dbhost = "192.168.x.x"; // but no x's
$dbuser = "dashboard";
$dbpass = "password"; // i copied&pasted the real password for other successful logins
$dbconnect = mysql_connect($dbhost, $dbuser, $dbpass) or die(mysql_error());
$query = mysql_query('SHOW DATABASES;');
?>
</head>
<body>
<? echo $query ?>
</body>
</html>

Semi-related note: Can I somehow set $dbpass equal to an encrypted string so it's not stored a plain-text?

EDIT: the mysql user is currently dashboard@192.168.% (not localhost)

EDIT 2: I thought since the Web Server is in the DMZ, that it might be communicating with MySQL from it's public IP, but when I change the host of dashboard to that, I get Host '192.168.xx.xx' is not allowed to connect to this MySQL server. So it seems that is not the case…

回答1:

The password contained a reserved character, so in PHP it needed to be enclosed with single quotes instead of double quotes.

回答2:

did you run

GRANT ALL PRIVILEGES ON mydb.* TO 'username'@'%'

or just the same, but @'localhost' ?

来源：https://stackoverflow.com/questions/7354521/mysql-access-denied-for-user-only-happens-when-connecting-via-php

标签

php

mysql

access-denied