大约有 40,000 项符合查询结果(耗时:0.0370秒) [XML]
What's the difference between utf8_general_ci and utf8_unicode_ci?
...justify the performance cost. Today, that performance cost has all but disappeared, and developers are treating internationalization more seriously.
There's an argument to be made that if speed is more important to you than accuracy, you may as well not do any sorting at all. It's trivial to make ...
How to avoid isset() and empty()
I have several older applications that throw a lot of "xyz is undefined" and "undefined offset" messages when running on the E_NOTICE error level, because the existence of variables is not explicitly checked using isset() and consorts.
...
Simplest PHP example for retrieving user_timeline with Twitter API version 1.1
...a free and necessary step to make requests for the v1.1 API.
2. Create an application: Create an application on the Twitter developer site
What? You thought you could make unauthenticated requests? Not with Twitter's v1.1 API.
You need to visit http://dev.twitter.com/apps and click the "Create App...
Change color of UISwitch in “off” state
I've learned that we can change the UISwitch button appearance in its "on" state,
but is it also possible to change the color of the UISwitch in the "off" state?
...
NSObject +load and +initialize - What do they do?
...
}
This program prints two lines of output:
2012-11-10 16:18:38.984 testApp[7498:c07] in Superclass initialize; self = Superclass
2012-11-10 16:18:38.987 testApp[7498:c07] in Superclass initialize; self = Subclass
Since the system sends the initialize method lazily, a class won't receive the me...
Can Selenium Webdriver open browser windows silently in background?
...g Selenium web driver with Python,you can use PyVirtualDisplay, a Python wrapper for Xvfb and Xephyr.
PyVirtualDisplay needs Xvfb as a dependency. On Ubuntu, first install Xvfb:
sudo apt-get install xvfb
then install PyVirtualDisplay from Pypi:
pip install pyvirtualdisplay
Sample Selenium scr...
Displaying files (e.g. images) stored in Google Drive on a website
...
However, apparently this URL (at least the "view" one) only works when the user viewing it is logged in to Google (Drive?). In an anonymous browsing window, I received a login page instead of the (publicly shared) image I requested.
...
Get individual query parameters from Uri [duplicate]
...exact collectiontype you are looking for, but nevertheless useful.
Edit: Apparently, if you supply the complete url to ParseQueryString it will add 'http://example.com/file?a' as the first key of the collection. Since that is probably not what you want, I added the substring to get only the releva...
What is the size of ActionBar in pixels?
I need to know the exact size of ActionBar in pixels so to apply correct background image.
13 Answers
...
How to backup a local Git repository?
...
I already installed your app in my local bare repository....how do you use it once it's installed....there's no info regarding that on the documentation, you should include a section withg an example on how to make a backup
– JA...
