blocks|key|1545261|text|您确定您的数据库连接凭据正确吗？如果你切换了服务器，这似乎就是问题所在。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1545262|此外，CodeIgniter为生产环境设置了error_reporting(0)+-因此出现了空白页面。检查您的日志目录(是否可由dir服务器进程写入？)获取任何其他信息。|1545263|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Are you sure your db connection credentials are correct? If you switchd servers this seems like it might be the issue.

Additionally, CodeIgniter sets error_reporting(0) for production environments --- hence the blank page. Check your logs dir (is it writeable by the webserver process..?) for any other info.

blocks|key|1545569|text|在application/config/database.php中检查|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1545570|$db['default']['dbdriver']+=+'mysql';|code-block|syntax|javascript|1545571|设置为|1545572|$db['default']['dbdriver']+=+'mysqli';|1545573|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

in application/config/database.php
check that 

<pre><code>$db['default']['dbdriver'] = 'mysql';
</code></pre>

is set to 

<pre><code>$db['default']['dbdriver'] = 'mysqli';
</code></pre>

blocks|key|1545459|text|我遇到了类似的问题，空白页似乎与加载数据库有关，无论是通过自动加载还是在模型构造函数中调用$this->load->database();。我最终不得不通过注释掉extension=php_pdo_mysql.dll和取消注释extension=php_mysql.dll来修改我的'php.ini‘文件(即关闭PDO+)。我运行的是Windows+8.1、Apache2.2和PHP+5.3.27。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1545460|这个答案和另一个答案类似，但我不能添加评论来澄清，因为我刚刚注册。我花了几个小时和大量的谷歌搜索才解决了这个问题，所以希望这能帮助到一些人。|1545461|entityMap^0|19|O|29|R|35|N|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Q|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|R|8|@]|D|@]|E|$]]]|I|$]]

I had a similar problem with blank pages seemingly associated with loading the database, be it via autoload or calling <code>$this-&gt;load-&gt;database();</code> in the model constructor. I ended up having to modify my 'php.ini' file by commenting out <code>extension=php_pdo_mysql.dll</code> and uncommenting <code>extension=php_mysql.dll</code> (i.e. turning PDO back off). I am running Windows 8.1, Apache 2.2, and PHP 5.3.27.

This answer is similar to another, but I couldn't add a comment for clarification since I just signed up. It took me a couple of hours and a lot of Googling to resolve, so hopefully this helps somebody.

blocks|key|3160708|text|请重新启动您的and服务器，然后重试。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3160709|用phpinfo()创建新的info.php文件；|3160710|3160711|blockquote|3160712|3160713|查看mysql扩展是否正在加载|3160714|尝试对你的目录执行chmod+0777|3160715|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|A|$]]|$1|E|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|R|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|S|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|T|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|M|$]]

Please restart your webserver and try again.

create a new info.php file with phpinfo();

<blockquote>
<pre><code>&lt;?php

phpinfo();

?&gt;
</code></pre>
</blockquote>

see if the mysql extension is loading if its loading

try to do a chmod 0777 to your directoy

blocks|key|3445632|text|当你没有为php安装mysql模块时，就会发生这种情况。在windows中，我相信这是随php安装程序一起提供的。如果您是在linux上，例如在Fedora上，您可以这样安装它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3445633|sudo+yum+-y+install+php-mysql|offset|length|style|CODE|3445634|安装后重新启动the服务器。假设您使用的是apache+httpd：|3445635|sudo+service+httpd+restart|3445636|现在您应该再次看到这些页面(假设您在conf/database.php中有正确的设置)。|3445637|entityMap^0|0|0|T|0|0|0|Q|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@$D|R|E|S|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@$D|V|E|W|F|G]]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|O|$]]

This happens when you don't have mysql module for php installed. In windows, I believe this comes with the php installer. If you are on linux, for example on Fedora, this is how you install it:

<code>sudo yum -y install php-mysql</code>

Restart the webserver after the installation. Assuming you are using apache httpd:

<code>sudo service httpd restart</code>

Now you should see the pages again (assuming you have correct settings in conf/database.php).

blocks|key|4926|text|我刚刚遇到了这个错误，在调试MYSQL驱动程序后，我找出了问题所在。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4927|问题是，在数据库配置文件上，我使用MYSQL作为驱动程序，而在服务器上安装了MYSQLI，只需在配置文件上更改它，您就完成了。|4928|希望这对某些人有帮助。|4929|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

I have just had this error, after debugging the MYSQL driver I figure out the problem.

The problem was that on the database config file I was using MYSQL as a driver when on the server it has installed MYSQLI, just change it on the config file and you're done.

Hope this helps someone.

blocks|key|5032|text|听起来您的数据库配置不正确，您的PHP安装阻止了错误。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5033|查看您的日志文件或尝试将|5034|ini_set('display_errors',1);
error_reporting(E_ALL%7CE_STRICT);|code-block|syntax|javascript|5035|在你的index.php中，看看你得到了什么|offset|length|style|CODE|5036|entityMap^0|0|0|0|3|9|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

It sounds like your database is not configured properly and your PHP installation is blocking the errors.

Take a look at your log files or try putting

<pre><code>ini_set('display_errors',1);
error_reporting(E_ALL|E_STRICT);
</code></pre>

in your <code>index.php</code> and see what you get

blocks|key|5085|text|对我来说，使用Z-WAMP遇到了同样的问题，不得不从php.ini中取消对"extension=php_mysql.dll“的注释。还分配了"mysql.default_port+=+3306“和"mysql.default_host+=+localhost”。希望它能帮助到外面的人|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5086|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For me, having the same issue using Z-WAMP, had to uncomment "extension=php_mysql.dll" from the php.ini. Also assigned "mysql.default_port = 3306" and "mysql.default_host = localhost". Hope it helps someone out there

blocks|key|3160876|text|对于使用linux的用户(特别是ubuntu)，并且仍然得到空白页面，请执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3160877|3160878|sudo+apt-get+install+php5+libapache2-mod-php5+php5-mysql+php5-cli+mysql-server|ordered-list-item|offset|length|style|CODE|3160879|sudo+service+apache2+restart|3160880|$autoload['libraries']+=+array('database');|3160881|3160882|entityMap^0|0|0|0|26|0|0|S|0|0|17|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|R|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|S|8|@$F|T|G|U|H|I]]|9|@]|A|$]]|$1|J|3|K|5|E|7|V|8|@$F|W|G|X|H|I]]|9|@]|A|$]]|$1|L|3|M|5|E|7|Y|8|@$F|Z|G|10|H|I]]|9|@]|A|$]]|$1|N|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|P|$]]

For those using linux (esp. ubuntu) and are still getting the blank page, do the following:

<ol>
<li><code>sudo apt-get install php5 libapache2-mod-php5 php5-mysql php5-cli mysql-server</code></li>
<li><code>sudo service apache2 restart</code></li>
<li><code>$autoload['libraries'] = array('database');</code></li>
</ol>

blocks|key|5142|text|安装php5-pgsql为我修复了它(在Ubuntu上)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5143|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Installing php5-pgsql fixed it for me (on Ubuntu)

blocks|key|3160971|text|只需转到application/config/database.php并找到|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3160972|$db['default']['dbdriver']+=+'mysql';|code-block|syntax|javascript|3160973|用'mysqli'替换'mysql'|offset|length|style|CODE|3160974|$db['default']['dbdriver']+=+'mysqli';|3160975|就是这样！|3160976|entityMap^0|0|0|1|8|B|7|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@$I|V|J|W|K|L]|$I|X|J|Y|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|10|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|R|$]]

just go to application/config/database.php and find

<pre><code>$db['default']['dbdriver'] = 'mysql';
</code></pre>

Replace <code>'mysql'</code> with <code>'mysqli'</code>

<pre><code>$db['default']['dbdriver'] = 'mysqli';
</code></pre>

and that's it!

I encouter a problem since this morning, after I migrated my website from my local machine to the server.

To replace the context, I developed a website with the framework CodeIgniter, and everything before the migration was working fine.

After a long research, it seems that when i put this :

<pre><code>$autoload['libraries'] = array('database');
</code></pre>

I have a blank page on my website, without any php/ci errors in the logs.

And if I let this :

<pre><code>$autoload['libraries'] = array();
</code></pre>

The website is working correctly (well, I can't log in but I don't have a blank page).

I added the mysql.so in the php.ini file, but it didn't help me neither.

Does someone already encountered this problem ? How can you solved it please ?

Thanks !

B

CodeIgniter - Blank page on database autoload

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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今天早上，当我把我的网站从本地机器迁移到服务器上后，我遇到了一个问题。为了替换上下文，我开发了一个使用框架CodeIgniter的网站，迁移之前的一切都运行得很好。经过长时间的研究，似乎当我把这个放在：$autoload['libraries'] = array('database');我的网站上有一个空白页面，日志中没有任何php/ci错误。如果我让这个：$autoload['libraries

问CodeIgniter -数据库自动加载的空白页面
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