可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):
问题:
This question already has an answer here:
So I have this Amazon Web Service database all set up
I'm working off an old tutorial for an application that I'm planning on using it with.
I noticed that mysql_connect was deprecate when I looked it up.
What can I use as an alternative? How can I connect to my amazon database?
<? mysql_connect("localhost", "username", "password") or die ("Can't connect to database server"); mysql_select_db("videoRecorderDemo") or die ("Can't select database"); mysql_query("SET NAMES 'utf8'"); ?>
I get this error:
Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'username'@'192.168.1.1' (using password: YES) in /www/zxq.net/r/e/d/red5vptest/htdocs/utility/db.php on line 2 Can't connect to database server
No matter what credentials I use. It also doesn't help that Amazon's code samples show you connecting in an entirely different way.
回答1:
The documentation for PHP says
This extension is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the MySQLi or PDO_MySQL extension should be used.
$mysqli = new mysqli('localhost', 'my_user', 'my_password', 'my_db'); /* * This is the "official" OO way to do it, * BUT $connect_error was broken until PHP 5.2.9 and 5.3.0. */ if ($mysqli->connect_error) { die('Connect Error (' . $mysqli->connect_errno . ') ' . $mysqli->connect_error); }
回答2:
The error message you are getting is unrelated to the deprecation of mysql_connect. The MySQL username and password you're using ("username" and "password" in your code) are wrong ― if you don't know the correct values, check the documentation for the version of MySQL you installed. (You may need to create a user and/or database.)
As several others have mentioned, the supported alternatives to the mysql extension are mysqli and PDO MySQL.
回答3:
MysqlI (mysql improved) is the successor for mysql.
$Link = new mysqli($Hostname, $Username, $Password, $Database); $Result = $Link->query('SELECT ...'); $Rows = $Result->fetch_array(MYSQLI_NUM);
回答4:
The manual suggests mysqli as an alternative http://php.net/manual/en/book.mysqli.php
回答5:
One easy alternative to the MySQL extension is MySQLi. Instead of
mysql_connect("host", "username", "password")
... you could connect using e.g.
$db = mysqli_connect("host", "username", "password");
It's probably worth reading this helpful tutorial: http://phpmaster.com/avoid-the-original-mysql-extension-1/
