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Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
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This is a super interesting piece of information! Looks like it's true; but I couldn' find any official documentation supporting this fact. We also need to know which versions of PHP support this lazy copy concept. Anyone has more info?
– M...
Multiprocessing - Pipe vs Queue
... benefits.
BONUS MATERIAL 2
Multiprocessing introduces subtle changes in information flow that make debugging hard unless you know some shortcuts. For instance, you might have a script that works fine when indexing through a dictionary in under many conditions, but infrequently fails with certain...
How can you encode a string to Base64 in JavaScript?
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From here:
/**
*
* Base64 encode / decode
* http://www.webtoolkit.info/
*
**/
var Base64 = {
// private property
_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
// public method for encoding
encode : function (input) {
var output = "";
var chr1, chr2...
常用Linux命令详解（持续更新） - 更多技术 - 清泛网 - 专注C/C++及内核技术
....txt文件之后:
[root@KEDACOM temp]# cat file >> file.txt
将new.txt和info.txt合并成readme.txt文件:
[root@KEDACOM temp]# cat file file.txt > readme.txt
>> 表示在文件末尾追加内容 > 表示直接覆盖原文件内容
2.创建、编辑文本操作的touch、vi命令
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What new capabilities do user-defined literals add to C++?
...t, it is the summary of the paragraph they are in. People wanting only the info without justification can limit their reading on the titles and bold text.
– paercebal
Oct 30 '08 at 21:40
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Understanding the Rails Authenticity Token
...me fields as the bank's "Transfer Funds" form.
Attacker knows your account info, and has pre-filled form fields to transfer money from your account to attacker's account.
Attacker's page includes Javascript that submits form to your bank.
When form gets submitted, browser includes your cookies for t...
How to filter NSFetchedResultsController (CoreData) with UISearchDisplayController/UISearchBar
...ure out what table view it will query and which applicable FRC to pull the information from. The FRC delegate methods must also figure out which tableView to update.
It is surprising how much of this is boilerplate code.
Relevant bits of the header file:
@interface BlahViewController : UITableVi...
How can I add reflection to a C++ application?
...not managed C++, which has reflection. I realise C++ supplies some limited information using RTTI. Which additional libraries (or other techniques) could supply this information?
...
Maintain the aspect ratio of a div with CSS
...utside container of an element, which includes the padding area. For more information Google "CSS Box Model"
– Anson Kao
Sep 17 '12 at 20:33
11
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How do function pointers in C work?
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Thanks for the great info. Could you add some insight on where function pointers are used or happen to be particularly useful?
– Rich.Carpenter
May 8 '09 at 15:55
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