大约有 40,000 项符合查询结果(耗时:0.0344秒) [XML]

https://stackoverflow.com/ques... 

If isset $_POST

.... empty space is considered as set. You need to use empty() for checking all null options. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Test PHP headers with PHPUnit

...78 Error: Class 'PHPUnit_Util_Configuration' not found in - on line 378 Call Stack: 0.0013 582512 1. {main}() -:0 Try add this to your bootstrap file to fix it: <?php if (!defined('PHPUNIT_COMPOSER_INSTALL')) { define('PHPUNIT_COMPOSER_INSTALL', __DIR__ . '/path/to/composer/ven...
https://stackoverflow.com/ques... 

What is a good regular expression to match a URL? [duplicate]

... I changed your expression a bit so it will work in all cases i need, including uri with http:// or www "/([^\s\.]+\.[^\s]{2,}|www\.[^\s]+\.[^\s]{2,})/gi" – Ismael Jan 14 '15 at 11:08 ...
https://stackoverflow.com/ques... 

What's the algorithm to calculate aspect ratio?

...re that's been changed from 16:9 to 5:4 - I still remember the incredibly tall, thin cowboys I used to watch in my youth on television before letter-boxing was introduced. You may be better off having one different image per aspect ratio and just resize the correct one for the actual screen dimensio...
https://stackoverflow.com/ques... 

How to clear MemoryCache?

...clear it first. What is the quickest way to do this? Should I loop through all the items and remove them one at a time or is there a better way? ...
https://stackoverflow.com/ques... 

What is the difference between 'my' and 'our' in Perl?

... On the other hand, our variables are package variables, and thus automatically: global variables definitely not private not necessarily new can be accessed outside the package (or lexical scope) with the qualified namespace, as $package_name::variable. Declaring a variable with our allows you...
https://stackoverflow.com/ques... 

What is the default text size on Android?

...ues are defined within the following TextAppearances: - TextAppearance.Small - TextAppearance.Medium - TextAppearance.Large More information about Typography can be found in the design guidelines Related to your question: If you don't set a custom textSize or textAppearance, TextAppearance.S...
https://stackoverflow.com/ques... 

How do you build a Singleton in Dart?

... There's the weird syntax Singleton._internal(); that looks like a method call when it's really a constructor definition. There's the _internal name. And there's the nifty language design point that Dart lets you start out (dart out?) using an ordinary constructor and then, if needed, change it to a...
https://stackoverflow.com/ques... 

Using logging in multiple modules

I have a small python project that has the following structure - 11 Answers 11 ...
https://stackoverflow.com/ques... 

Objective-C and Swift URL encoding

...ww"; NSString *escapedString = [unescaped stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]]; NSLog(@"escapedString: %@", escapedString); NSLog output: escapedString: http%3A%2F%2Fwww The following are useful URL encoding character sets: URLFragm...