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手握利器，直面“蓝脸”! ——使用WinDbg抗击系统崩溃 - 操作系统(内核) - ...
...indows有时候也会跟我们闹闹情绪，小则是“应用程序遇到问题需要关闭”，搞不好还可能给您脸色看看。但是，这脸色可不是红的白的，而是一张“蓝脸”，您见过吗？首先，我们介绍以下三个重要的问题：
一、到底什么是...
Best way to create an empty object in JSON with PHP?
...
Well, json_encode() simply returns a string from a PHP array/object/etc. You can achieve the same effect much more efficiently by doing:
$json = '{}';
There's really no point in using a function to accomplish this.
UPDATE
As per your comment updates, you could try:
$test = json_encode(ar...
TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 算法
但是上面的这个算法在重传的时候会出有一个终极问题——你是用第一次发数据的时间和ack回来的时间做RTT样本值，还是用重传的时间和ACK回来的时间做RTT样本值？
这个问题无论你选那头都是按下葫芦起了瓢。 如下图所...
大数据时代的数据化运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
...下，我们在运营中看到可以获得有效数据的原始数据不是问题，去除无效和虚假的数据才是关键。
相信做发行的同行都知道，在实践中，会遇到通过某些渠道或者是CPS，或者是广告渠道，他们一定会有大量的虚假的数据在里面...
Can't use method return value in write context
...ral that's ok, but it's not strictly equivalent to empty(), because "", 0, etc. are "empty", but not null.
– Kornel
Apr 11 '14 at 11:19
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sh...
PHP function overloading
...creates
The idea is you have different type of arguments, arrays, objects etc, then you detect what you were passed and go from there
function($arg1, $lastname) {
if(is_array($arg1)){
$lastname = $arg1['lastname'];
$firstname = $arg1['firstname'];
} else {
$firstnam...
ab load testing
...if the response times (means, min and max response times, failed requests, etc) are numbers your site can accept (different sites might desire different speeds). You can run the tool with different -c values until you hit the spot where you say "If I increase it, it starts to get failed requests and...
Website screenshots
... you're rendering a site which makes use of webfonts, svg, canvas, flexbox etc then good luck getting an accurate screenshot.. If you do want accurate screenshots check my answer which uses urlbox
– cjroebuck
Apr 27 '17 at 8:49
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App Inventor 2 中文网原创内容 · App Inventor 2 中文网
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App Inventor 2 中文网原创的技术文档，作品，技术文章，帖子，问答，技术指导，问题解决思路等。
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Simplest two-way encryption using PHP
...ermore it used to accept things like partial keys, performing zero padding etc. There is a good reason why it is in the process of being gradually removed from PHP.
– Maarten Bodewes
May 12 '16 at 15:09
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