大约有 47,000 项符合查询结果(耗时:0.0292秒) [XML]

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Detect encoding and make everything UTF-8

...ng, it will return garbled UTF-8 output. I made a function that addresses all this issues. It´s called Encoding::toUTF8(). You don't need to know what the encoding of your strings is. It can be Latin1 (ISO 8859-1), Windows-1252 or UTF-8, or the string can have a mix of them. Encoding::toUTF8() wi...
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PHP: How to handle

...s a string. (in this example, the casting is superfluous, as echo automatically does it anyway) $content = simplexml_load_string( '<content><![CDATA[Hello, world!]]></content>' ); echo (string) $content; // or with parent element: $foo = simplexml_load_string( '<foo&g...
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大数据不是万能的 - 资讯 - 清泛网 - 专注C/C++及内核技术

...地方。我们认为,大数据其实面对的不是99%的机构面对的问题,这个说法跟市场上很多的说法不大一样。 我们看一下,把这个额度分配到一万到十万区域。在这个领域从事信贷服务的,大家马上想到的是信用卡,也可能想到某...
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C语言面试那些事儿──一道指针与数组问题 - c++1y / stl - 清泛IT社区,为创新赋能!

...言指针较晦涩和难懂的地方。 理解了这两点的话,上述问题则十分简单:a + 1:现在把a看作一个指针,指针+1操作,根据C语言语义,实际增加偏移量的是指针指向类型的长度,即32位机器下的int型,即4字节,故a+1就是&a[1],...
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一文讲透区块链技术原理 - 资讯 - 清泛网 - 专注C/C++及内核技术

...定是可信的。 区块链技术原理的来源可归纳为一个数学问题:拜占庭将军问题。拜占庭将军问题延伸到互联网生活中来,其内涵可概括为:在互联网大背景下,当需要与不熟悉的对手方进行价值交换活动时,人们如何才能防止...
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MySQL ('root'@'%') does not exist 的问题 - 爬虫/数据库 - 清泛IT社区,为创新赋能!

MySQL ('root'@'%') does not exist的问题: 在使用mysql时出现问题: The user specified as a definer ('root'@'%') does not exist。 一般是由于root用户对全局host无访问权限。因此只要给root用户添加一个访问权限即可。 解决办法: 登陆mysql ,...
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Facebook Graph API, how to get users email?

...ress is to request extended permissions on the email field. The user must allow you to see this and you cannot get the e-mail addresses of the user's friends. http://developers.facebook.com/docs/authentication/permissions You can do this if you are using Facebook connect by passing scope=email in...
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Find out HTTP method in PHP [duplicate]

...e superglobals alternatives (Is using superglobals directly good or bad in PHP? and similar questions), one may instead use automatic sanitizing filter_input( \INPUT_SERVER, 'REQUEST_METHOD', \FILTER_SANITIZE_SPECIAL_CHARS ) (you might of course use other filter, eg. FILTER_SANITIZE_STRING - see ...
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记一次数据库表自增长(Auto Increment)故障 - 数据库(内核) - 清泛网 - ...

...被一阵急促的报警短信声惊醒,原来是数据库的某个表出问题了,虽然查询操...故障的来龙去脉大致是这样的:在一个月黑风高的晚上,苦逼的程序员被一阵急促的报警短信声惊醒,原来是数据库的某个表出问题了,虽然查询操...
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浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...的处理能力,那么接收方会出现丢包。为了避免出现此类问题,流量控制要求数据传输双方在每次交互时声明各自的接收窗口「rwnd」大小,用来表示自己最大能保存多少数据,这主要是针对接收方而言的,通俗点儿说就是让发...