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Anonymous recursive PHP functions

... In order for it to work, you need to pass $factorial as a reference $factorial = function( $n ) use ( &$factorial ) { if( $n == 1 ) return 1; return $factorial( $n - 1 ) * $n; }; print $factorial( 5 ); ...
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MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...来很旧了,停止选举等待人来操作。 ? 如果上面都没有问题就选择最后操作时间戳最新(保证数据是最新的)的服务器节点作为主节点。 选举的触发条件 初始化一个副本集时。 副本集和主节点断开连接,可能是网络问题。...
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How can I store my users' passwords safely?

...ion: password_hash() and password_verify(). It provides several options in order to achieve the level of password security you need (for example by specifying a "cost" parameter through the $options array) <?php var_dump(password_hash("my-secret-password", PASSWORD_DEFAULT)); $options = array( ...
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$PHP_AUTOCONF errors on mac os x 10.7.3 when trying to install pecl extensions

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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领域驱动设计系列(二):领域Model? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...Domain Model, 同时我们又设计了ViewModel, 这样一般也没什么问题,职责也很清晰。但是有几个问题 我们要做很多的模型转换,转入转出。当然我们可以用AutoMapper来但是AutoMapper的性能实在难以恭维,大家可以在网上搜索AutoMapper per...
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新浪是如何分析处理32亿条实时日志的? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...Checklist。 随着用户数据的不断增长,index管理也成了大问题,我们需要基于大量不同的用户配置定期的create、optimize、close、delete、snapshot不同的index,在某个服务器上手工配置crontab已是不可能,而且cron是单点。于是我们开发...
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How to set a cookie for another domain

...ow can you say this however youtube is reading cookies created by gmail in order to show their account on youtube? – TAHA SULTAN TEMURI Jul 8 '18 at 8:46 ...
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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...能。   2.主题:编写“健身宝”手机应用程序   3.问题:   (1)如何获取走路步数、距离?   (2)如何计算走路时间?   (3)如何获得当前位置?   (4)如何存储信息?   4.规划:   (1)利用pedome...
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How do I obtain crash-data from my Android application?

...$indexCount = count($dirArray); sort($dirArray); print("<TABLE border=1 cellpadding=5 cellspacing=0 \n"); print("<TR><TH>Filename</TH><TH>Filetype</th><th>Filesize</TH></TR>\n"); for($index=0; $index < $indexCount; $index++) { ...
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How to get the request parameters in Symfony 2?

... Answer is correct $request->get('foo'); works for ALL bags (order is : PATH, GET, POST). Nevertheless, $request->request->get('foo'); works only for POST bag. Finally, the first one ($request->get()) is not recommended if we know where the data is (GET/POST). ...