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Can I implement an autonomous `self` member type in C++?
...question, not the answer. In many cases in software development (and especially maintenance) it is helpful to avoid redundancies in the code, so that changing something in one place does not require you to change code in another place. That's the whole point of auto and decltype or in this case of s...
How to pop an alert message box using PHP?
... send to the client's browser. PHP is a server-side language. This is what allows it do things like INSERT something into a database on the server.
But an alert is rendered by the browser of the client. You would have to work through javascript to get an alert.
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Reference assignment operator in PHP, =&
...rror changes made to another, instead of copying the existing data.
It's called assignment by reference, which, to quote the manual, "means that both variables end up pointing at the same data, and nothing is copied anywhere".
The only thing that is deprecated with =& is "assigning the result ...
What is Node.js? [closed]
I don't fully get what Node.js is all about. Maybe it's because I am mainly a web based business application developer. What is it and what is the use of it?
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In PHP, what is a closure and why does it use the “use” identifier?
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This is how PHP expresses a closure. This is not evil at all and in fact it is quite powerful and useful.
Basically what this means is that you are allowing the anonymous function to "capture" local variables (in this case, $tax and a reference to $total) outside of it scope and...
PHP memory profiling
...r example, to see how much memory my data is using, and/or which function calls are allocating the most memory.
4 Answers
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Enable Vim Syntax Highlighting By Default
...your $HOME as .vimrc. It switches on a lot of basic stuff for you automatically (syntax, search highlighting, backup etc). You can then tweak it based on your needs.
– oyenamit
Jun 30 '12 at 14:51
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Convert number to month name in PHP
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The recommended way to do this:
Nowadays, you should really be using DateTime objects for any date/time math. This requires you to have a PHP version >= 5.2. As shown in Glavić's answer, you can use the following:
$monthNum = 3;
$dateObj = DateTime::createFromFormat('!m',...
App Inventor 2 接入百度网盘API · App Inventor 2 中文网
...我们的请求：Transfer-Encoding can’t be trunked.
而采用python或php自己写一个简单服务端是可以接受上传的文件的。
采用图片base64方案，也只能自己写服务端，然后解码，恢复文件，百度网盘也无法采用这种方案。
直接用python或curl...
how to stop browser back button using javascript
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There are numerous reasons why disabling the back button will not really work. Your best bet is to warn the user:
window.onbeforeunload = function() { return "Your work will be lost."; };
This page does list a number of ways you could try to disable the back button, but none are guaranteed...