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What's the difference between :: (double colon) and -> (arrow) in PHP?

... used to access static members, such usage is discouraged), while :: is usually used to access static members (though in a few special cases, it's used to access instance members). In general, :: is used for scope resolution, and it may have either a class name, parent, self, or (in PHP 5.3) static...
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Python: Bind an Unbound Method?

In Python, is there a way to bind an unbound method without calling it? 5 Answers 5 ...
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Print current call stack from a method in Python code

In Python, how can I print the current call stack from within a method (for debugging purposes). 7 Answers ...
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How to update PATH variable permanently from Windows command line?

... do this can be found on MSDN. The key extract is this: To programmatically add or modify system environment variables, add them to the HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment registry key, then broadcast a WM_SETTINGCHANGE message with lParam set to the s...
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How to pretty print nested dictionaries?

... This is cool, but doesn't print all dictionaries well. print json.dumps(myObject.__dict__, sort_keys=True, indent=4) #TypeError: <object at 0x0000000002E6A748> is not JSON serializable – tponthieux Feb 8 '12 at 2...
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disable textbox using jquery?

... This thread is a bit old but the information should be updated. http://api.jquery.com/attr/ To retrieve and change DOM properties such as the checked, selected, or disabled state of form elements, use the .prop() method. $("#radiobutt input[type=radio]").each(function(i){ $(this).click(f...
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Python mysqldb: Library not loaded: libmysqlclient.18.dylib

I just compiled and installed mysqldb for python 2.7 on my mac os 10.6. I created a simple test file that imports 15 Answe...
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Python: Tuples/dictionaries as keys, select, sort

...es and so on. I'd like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g., ...
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How to list branches that contain a given commit?

...uery git to find out which branches contain a given commit? gitk will usually list the branches, unless there are too many, in which case it just says "many (38)" or something like that. I need to know the full list, or at least whether certain branches contain the commit. ...
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Is it possible to get the non-enumerable inherited property names of an object?

... use that and combine it with walking up the prototype chain. function getAllProperties(obj){ var allProps = [] , curr = obj do{ var props = Object.getOwnPropertyNames(curr) props.forEach(function(prop){ if (allProps.indexOf(prop) === -1) al...