blocks|key|5698659|text|检查/var/log/apache2/error.log中的错误日志|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5698660|entityMap^0|2|Q|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Check error logs in <code>/var/log/apache2/error.log</code>

blocks|key|4281642|text|我在安装第三方LAMP应用程序时遇到了同样的问题，原因是缺少php5-mysql包。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4281643|希望这对其他人有帮助。|4281644|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|$]]

I got the same problem while installing a third party LAMP application and the cause was missing php5-mysql package.

Hope this helps others.

blocks|key|4281681|text|有时，此白屏可能是由于include()和include_once()函数所包含的php页面而发生的，该页面可能具有由php服务器报告的某些错误或任何语法错误。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4281682|这是因为包含的php页面在实际的php页面之前首先被执行，并且如果任何存在于包含的文件中的错误发生，这抑制了错误捕获，则进一步的php代码不被执行并且显示一个空白页面。|BOLD|4281683|4281684|首先尝试通过//一次切换一个include()或includ_once()来查找哪个相关文件有问题。|unordered-list-item|4281685|在找到故障相关文件后，请尝试检查该文件是否存在错误。|4281686|4281687|entityMap^0|B|9|L|E|0|4|8|X|E|1O|D|0|0|6|2|E|9|O|D|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@$9|X|A|Y|B|H]|$9|Z|A|10|B|H]|$9|11|A|12|B|H]]|D|@]|E|$]]|$1|I|3|-4|5|6|7|13|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|14|8|@$9|15|A|16|B|C]|$9|17|A|18|B|C]|$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|M|3|N|5|L|7|1B|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]|$1|P|3|-4|5|6|7|1D|8|@]|D|@]|E|$]]]|Q|$]]

Sometime this white screen may occur because of the php page that is included by <code>include()</code> and <code>include_once()</code> functions, which may have some error or any syntax error that are not reported by the php server. 

This happens because the included php page are executed first before the actual php page and if any error that is present in the included file occurs that suppresses the error catching then further php codes are not executed and a blank page is displayed.

<ul>
<li>First try to find that which dependent file has the problem by <code>//</code> toggling each <code>include()</code> or <code>includ_once()</code> one at a time.</li>
<li>After the culprit dependent file is found try to check it for the errors.</li>
</ul>

blocks|key|4281709|text|在我的例子中，当我使用Zend的uninstall.sh卸载Zend时，我需要编辑Apache+config+/etc/apache2/sites-enabled/000-default.conf来删除所有对Zend+Server的引用。我确实重启了Apache，但是重启整个机器有助于恢复PHP绑定。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4281710|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|$]]

In my case this happened when I un-installed Zend using its uninstall.sh, I then needed to edit the Apache config /etc/apache2/sites-enabled/000-default.conf to remove any references to Zend Server. I did restart Apache, but restarting the whole machine helped to revive PHP bindings.

blocks|key|5698744|text|在我的例子中，我发现问题出在我放在页面顶部的include_once()函数。我引用了Gaurav+Kispotta的答案，这就是我得到提示的地方。因此，如果您有相同的问题，首先注释掉它，甚至整个代码都包含在内。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5698745|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|$]]

In my case I find out that the include_once() function which I put on the top of the page was the problem . I red the answer by Gaurav Kispotta , that is where I got the tip . so if you have the same problem first comment that out , maybe even the entire code depending on that include .

blocks|key|5698761|text|您永远不应该使用require_once或include_once。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5698762|它会耗尽你的服务器内存。|5698763|只需使用include或require即可。|5698764|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|$]]

You should never ever use require_once or include_once.

It will burst your server memory.

Just go with include or require.

blocks|key|1704806|text|php是一种服务器端语言，因此如果整个代码都被php标签包围，那么从浏览器查看源代码将不会产生任何结果。使用ftp客户端从服务器下载文件，并尝试在编辑器中打开，以查看其中是否仍有代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1704807|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|$]]

php is a server side language so viewing source from browser will not yield any result if the whole codes are surrounded by php tags. Download the files from the server using an ftp client and try to open in an editor to see if there are still codes in it.

i have php 5.3.1 installed on apache2 in ubuntu 12.04 server .
my site was working fine untill last week when i found some of the files were missing and website was not showing.I uploaded site again on server and now when i browse any php pages it shows a blank page and also when i try to see the source code in browser for the blank page it dosnt show any source code.the html files are all showing up.

i dont think it is the server or appache2 probelm as i have other site with php on the same server working fine.
i checked with php files they are alrite.checked with the htacces.txt and that is same as the other working site on the same server.
can anyone here help what the problem could be.

thanks 

Rida

Php files show blank page

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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我在ubuntu12.04服务器的apache2上安装了php5.3.1。我的网站一直运行得很好，直到上周我发现一些文件丢失了，网站没有显示。我再次在服务器上上传了网站，现在当我浏览任何php页面时，它都显示一个空白页面，而且当我试图在浏览器中查看空白页面的源代码时，它没有显示任何源code.the html文件。我不认为这是服务器或appache2的问题，因为我有其他网站与php在同一服务器上正

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