大约有 48,000 项符合查询结果(耗时:0.0844秒) [XML]

https://stackoverflow.com/ques... 

Flat file databases [closed]

...gt; array("dubayou.com","willwharton.com","codecream.com"), "and_one" => "more"); and to save or update the db record for that user. $dir = "../userdata/"; //make sure to put it bellow what the server can reach. file_put_contents($dir.$user['name'],serialize($user)); and to lo...
https://stackoverflow.com/ques... 

What is the use of the @ symbol in PHP?

... I had time to correct my suppress spelling after posting ... and damn you for enhancing with a link at the same time rages :P – Aiden Bell Jun 23 '09 at 12:12 1 ...
https://stackoverflow.com/ques... 

Fastest way to check if a string is JSON in PHP?

...ray. Valid JSON values may be objects, arrays, numbers, strings, booleans, and null. – zzzzBov May 8 '15 at 1:30  |  show 17 more comments ...
https://stackoverflow.com/ques... 

Why do you need explicitly have the “self” argument in a Python method?

...quote Peters' Zen of Python. "Explicit is better than implicit." In Java and C++, 'this.' can be deduced, except when you have variable names that make it impossible to deduce. So you sometimes need it and sometimes don't. Python elects to make things like this explicit rather than based on a r...
https://stackoverflow.com/ques... 

How to load JAR files dynamically at Runtime?

...t classes are in what jars. As opposed to just loading a directory of jars and then instantiating classes. I am misunderstanding it? – Allain Lalonde Sep 13 '08 at 19:13 10 ...
https://stackoverflow.com/ques... 

What is the best way to implement constants in Java? [closed]

... That is perfectly acceptable, probably even the standard. (public/private) static final TYPE NAME = VALUE; where TYPE is the type, NAME is the name in all caps with underscores for spaces, and VALUE is the constant value; I highly recommend NOT putting your constants in ...
https://stackoverflow.com/ques... 

What does !! mean in ruby?

...ly not necessary to use though since the only false values to Ruby are nil and false, so it's usually best to let that convention stand. Think of it as !(!some_val) One thing that is it used for legitimately is preventing a huge chunk of data from being returned. For example you probably don't ...
https://stackoverflow.com/ques... 

Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques

...P request using NSURLRequest for a chunk of data. Object allocation spikes and I assign the data accordingly. When I finish with the data, I free it up accordingly - however instruments doesn't show any data to have been freed! ...
https://stackoverflow.com/ques... 

Do I need dependency injection in NodeJS, or how to deal with …?

... with nodejs. I have programmed a lot Java EE web applications with Spring and appreciated the ease of dependency injection there. ...
https://stackoverflow.com/ques... 

Why does find -exec mv {} ./target/ + not work?

I want to know exactly what {} \; and {} \+ and | xargs ... do. Please clarify these with explanations. 5 Answers ...