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优惠券批量生成及导入的思路 - 闲聊区 - 清泛IT论坛，有思想、有深度
...;$n = mt_rand(0, PHP_INT_MAX);
$m = base_convert($m, 10, 36); // 主随机
$n = base_convert($n, 10, 36); // 辅随机
$r = substr($m . $n, 0, 16);
...
What is this weird colon-member (“ : ”) syntax in the constructor?
...r class member doesn't have a default constructor or
For initialization of base class members or
When constructor’s parameter name is same as data member(this is not really a MUST)
A code example:
class MyClass
{
public:
//Reference member, has to be Initialized in Member Initial...
Difference in Months between two dates in JavaScript
...(2009, 11), new Date(2010, 0))) // 1
Be aware that month index is 0-based. This means that January = 0 and December = 11.
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How do the major C# DI/IoC frameworks compare? [closed]
...
Unity 3.5 already supports convention based registration:nuget.org/packages/Unity/3.5.1404. Remove one disadvantage ;-)
– Vladimir Dorokhov
May 19 '14 at 12:46
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Resumable downloads when using PHP to send the file?
...d in comments below have been incorporated.
A tested, working solution (based heavily on Theo's answer above) which deals with resumable downloads, in a set of a few standalone tools. This code requires PHP 5.4 or later.
This solution can still only cope with one range per request, but under any...
How to sort an ArrayList in Java [duplicate]
... of this class and adding each fruit in the list. I want to sort this list based on the order of fruit name.
3 Answers
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Why do people put code like “throw 1; ” and “for(;;);” in front of json responses? [du
...en without the for(;;); how would the attacker get the data?
Attacks are based on altering the behaviour of the built-in types, in particular Object and Array, by altering their constructor function or its prototype. Then when the targeted JSON uses a {...} or [...] construct, they'll be the attac...
How can I properly handle 404 in ASP.NET MVC?
...c string ReferrerUrl { get; set; }
}
#endregion
}
Step 2: Use a base Controller class so you can easily invoke your custom 404 action and wire up HandleUnknownAction
404s in ASP.NET MVC need to be caught at a number of places. The first is HandleUnknownAction.
The InvokeHttp404 method c...
Creating java date object from year,month,day
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Months are zero-based in Calendar. So 12 is interpreted as december + 1 month. Use
c.set(year, month - 1, day, 0, 0);
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Rails filtering array of objects by attribute value
...ts
This will be array of attachment objects
Use select method to filter based on file_type.
@logos = @attachments.select { |attachment| attachment.file_type == 'logo' }
@images = @attachments.select { |attachment| attachment.file_type == 'image' }
This will not trigger any db query.
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