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Easy way to test a URL for 404 in PHP?

...url so you can do additional things like checking the content for specific strings or whatever. In your case, you just care about the 404 state, so you probably do not need to worry about $response. – Beau Simensen Jan 3 '09 at 1:42 ...
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Flask-SQLAlchemy import/context issue

...b app = Flask(__name__) # later on db.init_app(app) This way you can avoid cyclical imports. This pattern does not necessitate the you place all of your models in one file. Simply import the db variable into each of your model modules. Example # apps.shared.models from flask_sqlalchemy import...
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How to check if a service is running on Android?

...ow the ServiceTools class: public class ServiceTools { private static String LOG_TAG = ServiceTools.class.getName(); public static boolean isServiceRunning(String serviceClassName){ final ActivityManager activityManager = (ActivityManager)Application.getContext().getSystemService(C...
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ng-model for `` (with directive DEMO)

...ipt will not send anything. It will read the file you selected as a Base64 string and update your model with that string. – Elmer Nov 15 '13 at 7:33 ...
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CSS - Overflow: Scroll; - Always show vertical scroll bar?

... Just ran into this problem myself. OSx Lion hides scrollbars while not in use to make it seem more "slick", but at the same time the issue you addressed comes up: people sometimes cannot see whether a div has a scroll feature or not. The fix: In your css include - ::...
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Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0

...ment Target to 7.1 Open the project's storyboard Drop a label onto the provided view controller Set the numberOfLines for that label to 2. Compile I've filed the following radar: rdar://problem/18700567 Update 2: Unfortunately, this is a thing again in the release version of Xcode 6. Note that yo...
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Why Would I Ever Need to Use C# Nested Classes [duplicate]

...'t if the class was a seperate class... public class Person { private string _firstName; private string _lastName; private DateTime _birthday; //... public class FirstNameComparer : IComparer<Person> { public int Compare(Person x, Person y) { ...
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In jQuery, how do I get the value of a radio button when they all have the same name?

...12_3" value="5">5</td> </tr> </table> <button id="submit">submit</button> Note that the above code is not the same as using .is(":checked"). jQuery's is() function returns a boolean (true or false) and not (an) element(s). Because this answer keeps get...
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Is there any difference between GROUP BY and DISTINCT

...-style): http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:32961403234212 share | improve this answer | follow | ...
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Pointer vs. Reference

...tional as input parameter void PrintOptional(const boost::optional<std::string>& optional_str) { if (optional_str) { cout << *optional_str << std::endl; } else { cout << "(no string)" << std::endl; } } // Sample method using op...