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Performance of FOR vs FOREACH in PHP

First of all, I understand in 90% of applications the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and... ...
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“unadd” a file to svn before commit

...Ok, I guess you and I understand this phrase differently: without deleting all the documents. Unfortunately, svn revert does also delete the newly added changes in the working copy, by restoring the lastest HEAD version. I removed my downvote, but I still feel the warning is important. ...
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How to use 'find' to search for files created on a specific date? [closed]

...nted out by Max, you can't, but checking files modified or accessed is not all that hard. I wrote a tutorial about this, as late as today. The essence of which is to use -newerXY and ! -newerXY: Example: To find all files modified on the 7th of June, 2007: $ find . -type f -newermt 2007-06-07 ! -...
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Script entire database SQL-Server

Is there a way I can get a scripting of all tables, procs, and other objects from a database? I know there's an option to script the database but it only gave me some sort of top level script, certainly not a script to create all tables, procs, udfs, .etc. ...
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How to close TCP and UDP ports via windows command line

...t the remote machine, the network card, the network cable, and your OS can all cause the socket to close. Consider also that Fiddler and Desktop VPN software can insert themselves into the network stack and show you all your traffic or reroute all your traffic. So all you really need is either fo...
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How do I add files and folders into GitHub repos?

...en git add * Then use git commit -m "<Message>" to commit files Finally git push -u origin master to push files. When you make modifications run git status which gives you the list of files modified, add them using git add * for everything or you can specify each file individually, then git...
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image processing to improve tesseract OCR accuracy

... highly pixellated - for example that generated by fax machines - is especially difficult for tesseract to process - presumably all those jagged edges to the characters confound the shape-recognition algorithms. ...
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ActiveRecord.find(array_of_ids), preserving order

... The answer is for mysql only There is a function in mysql called FIELD() Here is how you could use it in .find(): >> ids = [100, 1, 6] => [100, 1, 6] >> WordDocument.find(ids).collect(&:id) => [1, 6, 100] >> WordDocument.find(ids, :order => "field(id,...
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Clearing a string buffer/builder after loop

...only benefit of creating the SB outside is not losing the internal (potentially long) char[] of it. If in the first iterator it grew up enough, the second loop will not need to resize any char[]. But for getting the advantage the "clear method" will have to preserve the size of the internal array. s...
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What permission do I need to access Internet from an Android application?

... internet for my apk. No permission added to manifest, but if i try to install apk, installation inform me, that apk need FULL INTERNET ACCESS. How to solve this problem ? no permissions added to manifest. My apk not required full internet access - i want disable this permision. ...