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在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术

...利用周日休息一下,但是一醒来就收到消息说某服务有些问题。于是赶紧连线了一堆正在处理事件的工程师,等拿到初步的原因分析之后,已经4小时之后了。 “墨菲定律”,一位工程师说,“前几天觉得这个地方有些隐患,已...
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How do I obtain crash-data from my Android application?

...tion. If you decide to upload the stacktraces to the server, you can use a php script (index.php) to view them. If you're interested, you can find all the sources below - one java class for your application and two optional php scrips for the server hosting the uploaded stacktraces. In a Context (e...
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Null vs. False vs. 0 in PHP

...other good "nothing" entities. What is the difference, specifically in PHP? Does it have something to do with === ? 1...
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PHP: Storing 'objects' inside the $_SESSION

... is made, the class declaration/definition has already been encountered by PHP or can be found by an already-installed autoloader. otherwise it would not be able to deserialize the object from the session store. share ...
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Passing an Array as Arguments, not an Array, in PHP

I seem to remember that in PHP there is a way to pass an array as a list of arguments for a function, dereferencing the array into the standard func($arg1, $arg2) manner. But now I'm lost on how to do it. I recall the manner of passing by reference, how to "glob" incoming parameters ... but not ...
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TCP 的那些事儿(上) - 更多技术 - 清泛网 - 专注C/C++及内核技术

...些事儿(上)TCP是一个巨复杂的协议,因为他要解决很多问题,而这些问题又带出了很多子问题和阴暗面。所以学习TCP本身是个比较痛苦的过程,但对于学习的... TCP是一个巨复杂的协议,因为他要解决很多问题,而这些问题又...
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怎么解决MQTT连接掉线,自动连接问题,同时解决,反复断开连接,断开连接问...

解决MQTT退出后台后掉线自动连接问题,现在可以实现自动连接,但是在返回控制界面的时候,反复断开反复链接,还有切换页面的时候返回也是同样的问题,还有连接一个服务器,需要每个页面单独设置MQTT连接吗,是不是可以...
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Mixing a PHP variable with a string literal

...ake a look to the Variable parsing - Complex (curly) syntax section of the PHP manual. share | improve this answer | follow | ...
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内网时间同步问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术

内网时间同步问题标准的三层网络结构,INT网-----通讯层------应用层-----数据库层现在的问题是数据库层每一个月时间会快上那么一分钟解决方法使用CISCO通讯...标准的三层网络结构, INT网-----通讯层------应用层-----数据库层 现...
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How to calculate the bounding box for a given lat/lng location?

... Here is a PHP implementation from the specification found at JanMatuschek.de: github.com/anthonymartin/GeoLocation.class.php – Anthony Martin Dec 3 '12 at 14:10 ...