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What's better at freeing memory with PHP: unset() or $var = null
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It was mentioned in the unset manual's page in 2009:
unset() does just what its name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as ...
Hidden features of Ruby
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I actually wrote an gem at one point to do this, but my code was (a) a mess, and (b) slow. I'm very glad that the functionality has made it into core.
– James A. Rosen
Dec 14 '09 at 13:47
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How can I delete a service in Windows?
... have a couple old services that I want to completely uninstall. How can I do this?
13 Answers
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What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
... the FQCN (fully qualified class name) oracle.jdbc.driver.OracleDriver.
It doesn't "do" anything in terms of connecting to a database, aside from ensure that the specified class is loaded by the current classloader. There is no fundamental difference between writing
Class<?> driverClass = Clas...
What's so wrong about using GC.Collect()?
Although I do understand the serious implications of playing with this function (or at least that's what I think), I fail to see why it's becoming one of these things that respectable programmers wouldn't ever use, even those who don't even know what it is for.
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How do I record audio on iPhone with AVAudioRecorder?
... the example SpeakHere shows. There are not any examples of how to best do this in the iPhone Dev Center and only reference to the classes. I am a newbie at iPhone development, so I am looking for a simple sample to get me started.
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Why are Python's 'private' methods not actually private?
...ity to create 'private' methods and variables within a class by prepending double underscores to the name, like this: __myPrivateMethod() . How, then, can one explain this
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Script entire database SQL-Server
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Right-click on your database.
Tasks -> Generate Scripts.
That should do it.
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How to change column datatype in SQL database without losing data
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You can easily do this using the following command. Any value of 0 will be turned into a 0 (BIT = false), anything else will be turned into 1 (BIT = true).
ALTER TABLE dbo.YourTable
ALTER COLUMN YourColumnName BIT
The other option wou...
How to test a merge without actually merging first
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I don't think there is a way of simulating what will happen until you try the merge. However, if you make sure that the output of git status is empty before you do the merge, it is quite safe to just go ahead and try it. If y...