大约有 49,000 项符合查询结果(耗时:0.0390秒) [XML]
Why shouldn't I use mysql_* functions in PHP?
...jan Marjanovic will help you to choose.
And a better way is PDO, and I am now writing a simple PDO tutorial.
A simple and short PDO tutorial
Q. First question in my mind was: what is `PDO`?
A. “PDO – PHP Data Objects – is a database access layer providing a uniform method of access to ...
Git error on git pull (unable to update local ref)
...te local ref, when doing a pull in SourceTree.
We used :
git gc --prune=now
This removes any duplicate reference objects which should fix the issue.
Here are a few links where you can learn more about git references and pruning :
git tip of the week
git-prune documentation
git references
...
Code signing certificate for open-source projects?
...cient option but you will need to provide the public certificate. Using a known authority can help verify the file but I think it is over kill in this case use a checksum or sha2 hash of the file in combination with your self signed certificate. You could set up a linux box as a CA however they will...
Understanding typedefs for function pointers in C
...ionpointer(arg1, arg2, ...);
I can see why that works - I just prefer to know that I need to look for where the variable is initialized rather than for a function called functionpointer.
Sam commented:
I have seen this explanation before. And then, as is the case now, I think what I didn't get wa...
Measuring elapsed time with the Time module
...seconds consider the following:
import datetime
start = datetime.datetime.now()
# some code
end = datetime.datetime.now()
elapsed = end - start
print(elapsed)
# or
print(elapsed.seconds,":",elapsed.microseconds)
strftime documentation
...
What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...ve-c-literals-for-nsdictionary-nsarray-and:
Objective-C literals: one can now create literals for NSArray, NSDictionary, and NSNumber (just like one can create literals for NSString)
NSArray Literals
Previously:
array = [NSArray arrayWithObjects:a, b, c, nil];
Now:
array = @[ a, b, c ];
NSD...
How can one use multi threading in PHP applications
...
That's nice, I have not touched PHP for years and now it's got multithreading capabilities!
– cruizer
Mar 27 '14 at 8:33
1
...
What is null in Java?
...ify:
Uninitialized state
Termination condition
Non-existing object
An unknown value
How is it represented in the memory?
In Java? None of your concern. And it's best kept that way.
Is null a good thing?
This is now borderline subjective. Some people say that null causes many programme...
Multiline strings in VB.NET
...duced in Visual Basic 14 (in Visual Studio 2015). The above example can be now written as:
Dim s As String = "Hello
World & Space"
MSDN article isn't updated yet (as of 2015-08-01), so check some answers below for details.
Details are added to the Roslyn New-Language-Features-in-VB-14 Github ...
Is .NET Remoting really deprecated?
...s not recommended
for new development. Distributed
applications should now be developed
using the Windows Communication
Foundation (WCF).
Update: WCF doesn't distinguish between inter/intra/process/inter/intra-appdomain. If you are using single machine communication in WCF you use named p...
