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How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?

How do I delete a directory and its entire contents (files and subdirectories) in PHP? 21 Answers ...
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How do I use vimdiff to resolve a git merge conflict?

I just merged a branch into my master in git and I got Automatic merge failed; fix conflicts and then commit the result. Now I ran git mergetool and vimdiff opened with the image below. I don't know how to use vimdiff. What does each panel here mean and how should I proceed to fix the merge conf...
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Minimum and maximum date

I was wondering which is the minimum and the maximum date allowed for a Javascript Date object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it. ...
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How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited

... If you're using SQL Server 2005, you could use the FOR XML PATH command. SELECT [VehicleID] , [Name] , (STUFF((SELECT CAST(', ' + [City] AS VARCHAR(MAX)) FROM [Location] WHERE (VehicleID = Vehicle.VehicleID) FOR XML PATH ('')), 1, 2, '')) AS Locations ...
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INNER JOIN ON vs WHERE clause

... easier to see this with the WHERE syntax. As for your example, in MySQL (and in SQL generally) these two queries are synonyms. Also note that MySQL also has a STRAIGHT_JOIN clause. Using this clause, you can control the JOIN order: which table is scanned in the outer loop and which one is in the...
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EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?

... putting a wrapper function in the Configuration class in the Seed method, and replaced calls to SaveChanges with calls to my function instead. This function would simply enumerate the errors within the EntityValidationErrors collection, and rethrow an exception where the Exception message lists th...
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How do I write JSON data to a file?

... You forgot the actual JSON part - data is a dictionary and not yet JSON-encoded. Write it like this for maximum compatibility (Python 2 and 3): import json with open('data.json', 'w') as f: json.dump(data, f) On a modern system (i.e. Python 3 and UTF-8 support), you can wr...
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How can I use jQuery in Greasemonkey?

...bes for manually adding a script element to the page. Between version 0.8 and 0.9, @require is only processed when the script is first installed. If you change the list of required scripts, you need to uninstall your script and reinstall it; Greasemonkey downloads the required script once at instal...
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A gentle tutorial to Emacs/Swank/Paredit for Clojure

... [Edit from non-author: this is from 2010, and the process has been significantly simplified since May 2011. I'll add a post to this answer with my setup notes as of Feb 2012.] You'll need to put together a few pieces: Emacs, SLIME (which works perfectly well with Cl...
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XSD: What is the difference between xs:integer and xs:int?

I have started to create XSD and found in couple of examples for xs:integer and xs:int . 3 Answers ...