大约有 2,300 项符合查询结果（耗时：0.0339秒） [XML]
我用AnyComponent块改造了App，30个按钮的代码从300行缩成了10行 - App应用...
... 20多个按钮，点击后记录该桌的签到人数和时间
• 实时显示各桌的繁忙状态（绿色=空闲，黄色=忙碌，红色=排队）
• 管理员可一键重置所有桌台状态
• 后期还可能增加桌台，不能每次加一个就改一次代码
如果用传统方...
How can I sanitize user input with PHP?
...is a built-in FILTER_VALIDATE_EMAIL type
My own filter class (uses JavaScript to highlight faulty fields) can be initiated by either an ajax request or normal form post. (see the example below)
/**
* Pork.FormValidator
* Validates arrays or properties by setting up simple arrays.
* Not...
Detect iPad Mini in HTML5
Apple's iPad Mini is a smaller clone of the iPad 2 in more ways than we'd want. In JavaScript, the window.navigator object exposes the same values for the Mini and iPad 2. My tests so far to detect the difference have not lead to success.
...
浅谈Heatmap：网页热点图生成原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...是因为有的情况下需要修正点击坐标。比如说，一个居中显示的定宽的页面，其同一个位置在不同分辨率下的坐标是不同的，当渲染图片的时候，坐标需要以一个分辨率为准进行修正。
另外，如果用户正在拖动滚动条，是不应...
How are ssl certificates verified?
...ted certificate authority.
The certificate contains the domain name and/or ip address of the web server. Your web browser confirms with the certificate authority that the address listed in the certificate is the one to which it has an open connection.
Your web browser generates a shared symmetric k...
UDP vs TCP, how much faster is it? [closed]
...dges a set of packets, calculated by using the TCP window size and round-trip time (RTT).
For more information, I recommend the simple, but very comprehensible Skullbox explanation (TCP vs. UDP)
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如何编写一个独立的 PHP 扩展（译） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...境下才能使用的工具。
改装一个已经存在的扩展
为了显示出创建一个独立的扩展是很容易的事情，我们先将一个已经内嵌到 PHP 的扩展改成独立扩展。安装 PHP 并且执行以下命令：
$ mkdir /tmp/newext
$ cd /tmp/newext
现在你已...
Cookies vs. sessions
...omes invalid. If it was all based on cookies, a user (or hacker) could manipulate their cookie data and then play requests to your site.
Edit: I don't think there is any advantage to using cookies, other than simplicity. Look at it this way... Does the user have any reason to know their ID#? Ty...
Master-master vs master-slave database architecture?
... this is that it is very hard to preserve absolute consistency. See the wikipedia article for more.
Wikipedia seems to have a nice summary of the advantages and disadvantages
Advantages
If one master fails, other masters will continue to update the
database.
Masters can be located ...
京东天天果园与“褚橙”从合作演变成打假 - 资讯 - 清泛网 - 专注C/C++及内核技术
...和本来生活网。其中，本来生活网上“晒”出来的授权书显示，经“新平金泰果品有限公司玉溪分公司”授权，自2015年9月16日至2016年3月1日止，本来生活网为此季“褚橙”的官方在线经销商。
针对这起所谓的“打假风波”，有...