大约有 40,000 项符合查询结果(耗时:0.0298秒) [XML]

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What is the difference between MySQL, MySQLi and PDO? [closed]

...ocedural style and the OO one with mysqli. – Patrick Allaert Jun 19 '10 at 9:31 @Patrick, thanks. I've corrected this...
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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...
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Linux日志切分工具:Logrotate - 更多技术 - 清泛网 - 专注C/C++及内核技术

...似的还有Verbose选项,这里就不多说了。 Logrotate的疑问 问题:sharedscripts的作用是什么? 大家可能注意到了,我在前面Nginx的例子里声明日志文件的时候用了星号通配符,也就是说这里可能涉及多个日志文件,比如:access.log和e...
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ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术

...层传输之上提供完全相同的行为。 这种方法存在两个问题: 一,在特定的传输之上建立类TCP的封装实际上使得传输成为多余的了。如果这种方法的行为类似于TCP,那么为什么一开始就不用TCP呢?(性能特性排除在这个规...
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nginx server_name wildcard or catch-all

... is an admin console on admin.domain.com . These work great. Now I'd like all other domain requests to go to a single index.php - I have loads of domains and subdomains and it's impractical to list them all in an nginx config. ...
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Is there an equivalent for var_dump (PHP) in Javascript?

...vidual property: some objects have a LOT of properties and you'll be there all day clicking "OK", "OK", "OK", "O... dammit that was the property I was looking for". share | improve this answer ...
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海量数据相似度计算之simhash短文本查找 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...升级、增加机器,但有些时候光是增加机器已经解决不了问题了,就算增加机器也不是短时间能够解决的,需要考虑分布式、客户预算、问题解决的容忍时间?头大时候要相信人类的智慧是无穷的,泡杯茶,听下轻音乐:)畅想...
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Regex: match everything but specific pattern

...thing but a string starting with a specific pattern (specifically index.php and what follows, like index.php?id=2342343 ) ...
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Uncaught SyntaxError: Unexpected token :

... And how do I fix this? I have a php redirect that is causing this in Chrome. – Works for a Living Mar 8 '16 at 20:20 7 ...
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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...

...主机名作为名字,如此一来一旦主机名发生改变,就会出问题,所以推荐指定log_bin(从服务器的relay_log存在一样的问题)。 注:sync_binlog,innodb_flush_log_at_trx_commit,innodb_support_xa三个选项都是出于安全目的设置的,不是复制的...