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大数据时代的数据化运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
...下，我们在运营中看到可以获得有效数据的原始数据不是问题，去除无效和虚假的数据才是关键。
相信做发行的同行都知道，在实践中，会遇到通过某些渠道或者是CPS，或者是广告渠道，他们一定会有大量的虚假的数据在里面...
jQuery AJAX cross domain
Here are two pages, test.php and testserver.php.
14 Answers
14
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Easy way to test a URL for 404 in PHP?
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If you are using PHP's curl bindings, you can check the error code using curl_getinfo as such:
$handle = curl_init($url);
curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
/* Get the HTML or whatever is linked in $url. */
$response = cur...
了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...于处理文件系统操作的库，这一直是 C++ 语言存在的一个问题。过去，程序员必须使用本机 API 来解决此问题。通过本文您将了解一个提供安全、可移植且易用的 C++ 接口来促进文件系统操作的库：Boost Filesystem Library。
创建与...
Detect encoding and make everything UTF-8
...ixing UTF-8 and Latin1 in the same string.
Usage:
require_once('Encoding.php');
use \ForceUTF8\Encoding; // It's namespaced now.
$utf8_string = Encoding::toUTF8($utf8_or_latin1_or_mixed_string);
$latin1_string = Encoding::toLatin1($utf8_or_latin1_or_mixed_string);
Download:
https://github.co...
Correct way to pass multiple values for same parameter name in GET request
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FWIW PHP doesn't support reading args like ?id=5&id=3. PHP would only read in one value for id here. If I remember correctly, it would have to look like this for it to work with PHP: ?id[]=5&id[]=3
– ...
LR性能指标解释 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...深入地分析网站上那些下载很慢的图形或中断的连接等有问题的
元素。
1、Web Page Breakdown（页面分解总图）
"页面分解"显示某一具体事务在测试过程的响应情况，进而分析相关的事务运行是否正常。
"页面分解"图可以按下面...
How can I check if a URL exists via PHP?
How do I check if a URL exists (not 404) in PHP?
22 Answers
22
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Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的时候已经想到要实现与POSIX（UNIX 的国际标准）的兼容问题了。
Linux 操作系统的诞生
1981 年IBM 公司推出享誉全球的微型计算机IBM PC。在1981-1991 年间，MS-DOS 操作系统一直是微型计算机上操作系统的主宰。此时计算机...
How do I remove the last comma from a string using PHP?
... I like this answer in particular, because one of the issues with a lot of PHP built-in functions, is that some of them are void, and some of them have return types. In this case, I was trying to just write rtrim($string, ','), when I should be writing $string = rtrim($string, ',');
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