blocks|key|479431|text|您可以在php.ini或.htaccess中检查或更改值。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|479432|post_max_size|unordered-list-item|479433|该文件还有另一个限制：|479434|max_input_nesting_level|479435|memory_limit|479436|upload_max_filesize|479437|max_input_time|479438|max_input_vars|479439|您可以使用.htaccess来控制这些，如下所示：|479440|php_value+post_max_size+100M|code-block|syntax|javascript|479441|还可以使用以下方法检查进程中是否存在错误：|479442|error_reporting(E_ALL);|479443|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/post_max_size|1|http://php.net/max_input_nesting_level|2|http://php.net/memory_limit|3|http://php.net/upload_max_filesize|4|http://php.net/max_input_time|5|http://php.net/max_input_vars^0|4|7|C|9|0|0|D|0|D|0|0|0|0|N|0|N|1|0|0|C|0|C|2|0|0|J|0|J|3|0|0|E|0|E|4|0|0|E|0|E|5|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1N|8|@$9|1O|A|1P|B|C]|$9|1Q|A|1R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|1S|8|@$9|1T|A|1U|B|C]]|D|@$9|1V|A|1W|1|1X]]|E|$]]|$1|I|3|J|5|6|7|1Y|8|@]|D|@]|E|$]]|$1|K|3|L|5|H|7|1Z|8|@$9|20|A|21|B|C]]|D|@$9|22|A|23|1|24]]|E|$]]|$1|M|3|N|5|H|7|25|8|@$9|26|A|27|B|C]]|D|@$9|28|A|29|1|2A]]|E|$]]|$1|O|3|P|5|H|7|2B|8|@$9|2C|A|2D|B|C]]|D|@$9|2E|A|2F|1|2G]]|E|$]]|$1|Q|3|R|5|H|7|2H|8|@$9|2I|A|2J|B|C]]|D|@$9|2K|A|2L|1|2M]]|E|$]]|$1|S|3|T|5|H|7|2N|8|@$9|2O|A|2P|B|C]]|D|@$9|2Q|A|2R|1|2S]]|E|$]]|$1|U|3|V|5|6|7|2T|8|@]|D|@]|E|$]]|$1|W|3|X|5|Y|7|2U|8|@]|D|@]|E|$Z|10]]|$1|11|3|12|5|6|7|2V|8|@]|D|@]|E|$]]|$1|13|3|14|5|Y|7|2W|8|@]|D|@]|E|$Z|10]]|$1|15|3|-4|5|6|7|2X|8|@]|D|@]|E|$]]]|16|$17|$5|18|19|1A|E|$1B|1C]]|1D|$5|18|19|1A|E|$1B|1E]]|1F|$5|18|19|1A|E|$1B|1G]]|1H|$5|18|19|1A|E|$1B|1I]]|1J|$5|18|19|1A|E|$1B|1K]]|1L|$5|18|19|1A|E|$1B|1M]]]]

You can check or change value in <code>php.ini</code> or <code>.htaccess</code>:

<ul>
<li><a href="http://php.net/post_max_size" rel="nofollow"><code>post_max_size</code></a></li>
</ul>

There are also another limits in this file:

<ul>
<li><a href="http://php.net/max_input_nesting_level" rel="nofollow"><code>max_input_nesting_level</code></a></li>
<li><a href="http://php.net/memory_limit" rel="nofollow"><code>memory_limit</code></a></li>
<li><a href="http://php.net/upload_max_filesize" rel="nofollow"><code>upload_max_filesize</code></a></li>
<li><a href="http://php.net/max_input_time" rel="nofollow"><code>max_input_time</code></a></li>
<li><a href="http://php.net/max_input_vars" rel="nofollow"><code>max_input_vars</code></a></li>
</ul>

You can control these using .htaccess, like so:

<pre><code>php_value post_max_size 100M
</code></pre>

Also check if there are errors during processes using:

<pre><code>error_reporting(E_ALL);
</code></pre>

blocks|key|479458|text|您需要更改错误报告级别，以便在达到POST大小时显示警告，从而输出警告。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|479459|error_reporting(E_ALL);|code-block|syntax|javascript|479460|将error_reporting设置为E_ALL包括E_WARNING，但是如果不希望报告其他错误，则只需使用E_WARNING即可。|offset|length|style|CODE|479461|如果希望输出错误，请确保将display_errors设置为on或1。如果没有，则可以通过使用display_errors(1);在本地完成此操作。|479462|无论是否显示错误，它们仍将被记录到PHP错误日志文件中。|479463|entityMap^0|0|0|J|5|Q|9|1J|9|0|D|E|U|2|X|1|1B|I|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]|$I|X|J|Y|K|L]|$I|Z|J|10|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|11|8|@$I|12|J|13|K|L]|$I|14|J|15|K|L]|$I|16|J|17|K|L]|$I|18|J|19|K|L]]|9|@]|A|$]]|$1|O|3|P|5|6|7|1A|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|R|$]]

You need to change your error reporting level so that it displays warnings, as a warning is outputted when the POST size is reached.

<pre><code>error_reporting(E_ALL);
</code></pre>

Setting error_reporting to <code>E_ALL</code> includes <code>E_WARNING</code>, however you could just use <code>E_WARNING</code> if you didn't want other errors to be reported.

If you wanted the errors to be outputted, ensure you have <code>display_errors</code> set to <code>on</code> or <code>1</code>. If you don't, you can do so locally by using <code>display_errors(1);</code>

Regardless of whether you displays errors or not, they will still be logged to your PHP error log file.

blocks|key|2650741|text|您的应用程序可以检查这些设置。为此使用得到()。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2650742|例如：|2650743|ini_get('post_max_size');+//+in+bytes|code-block|syntax|javascript|2650744|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/manual/en/function.ini-get.php^0|J|4|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|6|7|W|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|C|$I|J]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

Your application can check these settings. Use <a href="http://php.net/manual/en/function.ini-get.php" rel="nofollow">ini_get()</a> for this.

For example:

<pre><code>ini_get('post_max_size'); // in bytes
</code></pre>

blocks|key|904142|text|请注意，这是一个开发和部署问题，因为您的PHP+(甚至整个Apache+)可能是反向代理，而且无论如何，可以有任意数量的中间代理对请求有限制，从而截断请求。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|904143|因此，第一步是确保post请求大小的PHP限制在处理请求的服务器软件链中最小。|904144|然后，我建议您阅读这个问题+(以及答案和注释)，以了解您可以做什么以及平台给了您什么，特别是检测这样的错误是多么的麻烦和不可靠。|904145|无论如何，我认为您不应该太害怕不给用户输入数据的反馈:毕竟，所有东西都有一个限制(考虑数据库列的大小、磁盘空间等等)，适当的大小比发出错误消息更重要。至少，我甚至不记得上一次服务抱怨请求大小是什么时候。如果您对文件上传限制特别感兴趣，那么这就完全不同了，因为在PHP脚本中，用户是否达到了给定的限制就更容易知道了。|904146|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/q/2133652/315306^0|B|2|0|0|9|4|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|W|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|J|3|K|5|6|7|11|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|M|$N|$5|O|P|Q|E|$R|S]]]]

Be aware that this is a development and deployment issue, because your PHP script (even the whole Apache server) may be reverse proxied, and anyway there can be any number of intermediate agents having a limit on the request and thus truncating it.

Thus the first step is ensuring that the PHP limit for post requests size is the least in the chain of server software that handle the request.

Then, I suggest you read <a href="https://stackoverflow.com/q/2133652/315306">this question</a> (and answers and comments) to get an idea of what you can do and what the platform gives you, and especially how cumbersome and somewhat unreliable it is to detect such an error.

Anyway, I think you should not be too scared about not giving users feedback about the data entered: after all, everything has a limit (think of database columns size, disk space and so on) and adequate sizing is more important than issuing an error message. At least, I can't even remember the last time a service complained about the request size. If you are especially interested in file upload limits, instead, that's quite a different thing because it's easier to know, in the PHP script, if the user hit the given limits.

PHP has several limits on POST-data (overall data size limit as well as field-limits). I currently get no warnings when I run into these limits - except missing data.

Is there a way to check whether PHP ran into one of these limits?

PHP: Check for dropped/cropped POST-data

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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PHP对后期数据有几个限制(总体数据大小限制以及字段限制)。当我遇到这些限制时，我目前没有收到警告-除了丢失的数据。有没有办法检查PHP是否遇到了这些限制之一？

问PHP:检查删除/裁剪后的数据
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