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How to detect duplicate values in PHP array?
...utput
Array
(
[apple] => 2
[orange] => 1
[pear] => 2
etc...
)
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How do I avoid the specification of the username and password at every git push?
... I ran step 1 and step 2 on ubuntu but it still asks me for u_id passwd. I also ran: ssh -T git@github.com. Still the same. What to do?
– Radhika
Jan 7 '15 at 7:24
4
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推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...单,而且很多时候推荐也是很准确的。然而它也存在一些问题:
依赖于准确的用户评分;
在计算的过程中,那些大热的物品会有更大的几率被推荐给用户;
冷启动问题。当有一名新用户或者新物品进入系统时,推荐将无从依...
How to use PHP OPCache?
... include things like: the state the cache is in (enabled, restarting, full etc), the memory usage, hits, misses and some more useful information. It will also contain the cached scripts.
var_dump(opcache_get_status());
opcache_reset():
Resets the entire cache. Meaning all possible cached scripts...
Best Practices: working with long, multiline strings in PHP?
... . "The second line starts two lines below.\r\n"
. ".. Third line... etc";
This might be slightly slower than HEREDOC or a multi-line string, but it will flow well with your code's indentation and make it easier to read.
...
程序员之网络安全系列(五):数字证书以及12306的证书问题 - 更多技术 - ...
程序员之网络安全系列(五):数字证书以及12306的证书问题前文回顾假如,明明和丽丽相互不认识,明明想给丽丽写一封情书,让隔壁老王送去如何保证隔壁老王不能看到情书内容?(保密性)如何保证隔壁...前文回顾
假如,...
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...
创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
创建增量同步Oracle物化视图问题我们采用Oracle的物化视图增量刷新机制定时将数据库A上的某个表的数据同步到另一个数据库B上。我们常用的最简单的实现步骤是这样。首先在数...我们采用Oracle的物化视图增量刷新机制定时将数...
线程访问窗口资源的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
线程访问窗口资源的问题在开个线程时常为所开的线程传入个窗口参数(cwnd),这里里面有个很大的隐患就是当做CWnd::AssertValid()检查,就会遇到断言失败。具...时常为所开的线程传入个窗口参数 (cwnd),这里里面有个很大的...
POST data with request module on Node.JS
...sing form will make the arrays into field[0].attribute, field[1].attribute etc. Instead use body like so.
var jsonDataObj = {'mes': 'hey dude', 'yo': ['im here', 'and here']};
request.post({
url: 'https://api.site.com',
body: jsonDataObj,
json: true
}, function(error, response, body...
