大约有 40,000 项符合查询结果(耗时:0.0302秒) [XML]

https://stackoverflow.com/ques... 

Include constant in string without concatenating

Is there a way in PHP to include a constant in a string without concatenating? 12 Answers ...
https://www.tsingfun.com/it/tech/1999.html 

java中的缓存技术该如何实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...存在于什么地方?3缓存有哪些属性?4缓存介质?搞清楚这4个问题,那么我们就可以随意的通过应用的场景来判断使用何...1、缓存为什么要存在? 2、缓存可以存在于什么地方? 3、缓存有哪些属性? 4、缓存介质? 搞清楚这4个...
https://stackoverflow.com/ques... 

How do I insert NULL values using PDO?

...akes a variable, to reference, and doesn't pull in a value at the time of calling bindParam. I found this in a comment on the php docs: bindValue(':param', null, PDO::PARAM_INT); EDIT: P.S. You may be tempted to do this bindValue(':param', null, PDO::PARAM_NULL); but it did not work for everybody...
https://stackoverflow.com/ques... 

Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?

... There is the beforeShowDay option, which takes a function to be called for each date, returning true if the date is allowed or false if it is not. From the docs: beforeShowDay The function takes a date as a parameter and must return an array with [0] equal to true/false indicating wh...
https://www.tsingfun.com/it/te... 

从一个开发的角度看负载均衡和LVS - 更多技术 - 清泛网 - 专注C/C++及内核技术

...允许的情况下我们会采用软负载,软负载解决的两个核心问题是:选谁、转发,其中最著名的是LVS(Linux Virtual Server)。 三、软负载——LVS LVS是四层负载均衡,也就是说建立在OSI模型的第四层——传输层之上,传输层上有...
https://www.tsingfun.com/ilife/life/1382.html 

为什么我们程序员写不出好代码? - 杂谈 - 清泛网 - 专注C/C++及内核技术

...提交的仓库里。如果代码行数都计算在内的话,原本一个问题只需10行代码即可解决,程序员有可能编写5000行代码,来让功能更加灵活和兼容,这样,他的代码总量就会增加5000行了。 衡量生产力反而会使代码变的更糟,让项目...
https://stackoverflow.com/ques... 

How to display HTML tags as plain text [duplicate]

I have an input form on my website where HTML is allowed and I'm trying to add instructions about the use of HTML tags. I'd like the text to ...
https://stackoverflow.com/ques... 

On delete cascade with doctrine2

...ple in order to learn how to delete a row from a parent table and automatically delete the matching rows in the child table using Doctrine2. ...
https://stackoverflow.com/ques... 

How does this giant regex work?

I recently found the code below in one of my directories, in a file called doc.php . The file functions or links to a file manager. It's quite nicely done. Basically, it lists all the files in the current directory, and it lets you change directories. ...
https://stackoverflow.com/ques... 

Is there a PHP function that can escape regex patterns before they are applied?

...our regex, commonly a forward slash (/) - will not be escaped. You will usually want to pass whatever delimiter you are using with your regex as the $delimiter argument. Example - using preg_match to find occurrences of a given URL surrounded by whitespace: $url = 'http://stackoverflow.com/questio...