大约有 16,800 项符合查询结果(耗时:0.0322秒) [XML]

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PHP - how to best determine if the current invocation is from CLI or web server?

I need to determine whether the current invocation of PHP is from the command line (CLI) or from the web server (in my case, Apache with mod_php). ...
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How do I get a value of datetime.today() in Python that is “timezone aware”?

I am trying to subtract one date value from the value of datetime.today() to calculate how long ago something was. But it complains: ...
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For loop for HTMLCollection elements

I'm trying to set get id of all elements in an HTMLCollectionOf . I wrote the following code: 12 Answers ...
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get dictionary key by value

... 8 Answers 8 Active ...
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What's the state of the art in email validation for Rails?

What are you using to validate users' email addresses, and why? 13 Answers 13 ...
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What is the difference between “Class.forName()” and “Class.forName().newInstance()”?

What is the difference between Class.forName() and Class.forName().newInstance() ? 9 Answers ...
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How to check iOS version?

I want to check if the iOS version of the device is greater than 3.1.3 I tried things like: 37 Answers ...
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“Width equals height” constraint in Interface Builder

I can't find a way to create a 'square' constraint, meaning 'width equals height' in Interface Builder. I guess it's possible to add such constraint programmatically. Is there something I can do in IB? Maybe I just don't see it? It seems trivial, yet I can't find it. ...
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Angular ng-repeat Error “Duplicates in a repeater are not allowed.”

I am defining a custom filter like so: 10 Answers 10 ...
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Can I export a variable to the environment from a bash script without sourcing it?

Suppose that I have this script 7 Answers 7 ...