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How to validate an email address in PHP

...:1[0-9]{2})|(?:[1-9]?[0-9]))){3}))\\]))$/iD'; $emailaddress = 'test@gmail.com'; if (preg_match($pattern, $emailaddress) === 1) { // emailaddress is valid } P.S. A note on the regex pattern used above (from the PHP source). It looks like there is some copyright on it of Michael Rushton. As st...
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What is the at sign (@) in a batch file and what does it do?

... At symbol - @ The @ symbol tells the command processor to be less verbose; to only show the output of the command without showing it being executed or any prompts associated with the execution. When used it is prepended to the beginning of the command, it is not...
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Homebrew: List only installed top level formulas

...ly does what my solution does with the exception of handling of optional/recommended dependencies (deps << dep.name if tab.with?(dep.name)). @HaralanDobrev This most certainly explains the behaviour with regards to mysql on your system and why the output differs from my solution, but you can e...
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Is it safe to ignore the possibility of SHA collisions in practice?

...t will explode, and it depends on you, will you take that risk? If you are completely right, then we can take the risk, because it is 45 orders of magnitude more probable the civilization to be destroyed. Right? – Hristo Hristov Oct 25 '10 at 13:13 ...
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How many concurrent requests does a single Flask process receive?

... does one keep track of which resources get shared (and how) and which are completely separate between threads/processes? For example, how would I handle a situation where I want to share a huge datastructure between several processes handled by Gunicorn and used in the Flask handlers? ...
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Python string.join(list) on object array rather than string array

... You could use a list comprehension or a generator expression instead: ', '.join([str(x) for x in list]) # list comprehension ', '.join(str(x) for x in list) # generator expression ...
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BroadcastReceiver with multiple filters or multiple BroadcastReceivers?

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C++虚继承的概念 - C/C++ - 清泛网 - 专注C/C++及内核技术

...承学习演示 4: //环境:VS2005 5: //blog:pppboy.blog.163.com 6: //---------------------------------------------------- 7: #include "stdafx.h" 8: #include <iostream> 9: using namespace std; 10: 11: //Base 12: class Base 13: { 14: public: 15...
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How do you programmatically set an attribute?

... to ``x.y = v''. Edit: However, you should note (as pointed out in a comment) that you can't do that to a "pure" instance of object. But it is likely you have a simple subclass of object where it will work fine. I would strongly urge the O.P. to never make instances of object like that. ...
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angular.min.js.map not found, what is it exactly?

...t add them into the same directory as the minified js files and it'll stop complaining. The reason they get fetched is the /* //@ sourceMappingURL=angular.min.js.map */ at the end of angular.min.js. If you don't want to add the .map files you can remove those lines and it'll stop the fetch attemp...