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How can I convert ereg expressions to preg in PHP?

...anation! I'd like just to add an special case in which your are converting from ereg to preg_match and you need to escape only the delimiters and not reserved characters (because they were already working as special characters, we don't want to escape them): preg_match('/'.str_replace('/','\/',$exp...
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sys.argv[1] meaning in script

...the arguments (as separated by spaces) on the command-line. The name comes from the C programming convention in which argv and argc represent the command line arguments. You'll want to learn more about lists and strings as you're familiarizing yourself with Python, but in the meantime, here are a f...
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Pass ruby script file to rails console

...What we also have been using a lot lately is to load the rails environment from within the script itself. Consider doit.rb: #!/usr/bin/env ruby require "/path/to/rails_app/config/environment" # ... do your stuff This also works if the script or the current working directory are not within the r...
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Spring Boot: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFa

I am totally new to Spring and started to do the official guides from this site: https://spring.io/guides 27 Answers ...
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When to use inline function and when not to use it?

...cantly impairs performance regardless of the faster execution that results from the calling overhead inline functions that are I/O bound the function is seldom used constructors and destructors: even when empty, the compiler generates code for them breaking binary compatibility when developing libra...
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NUnit vs. Visual Studio 2008's test projects for unit testing [closed]

...g can take too long. NUnit with something like Testdriven.Net to run tests from the IDE is actually much faster. Especially when running single tests. According to Kjetil Klaussen, this is caused by the Visual Studio testrunner. Running MSTest tests in TestDriven.Net makes MSTest performance compara...
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Error: “Cannot modify the return value” c#

...arefully perhaps you actually mean to modify the backing variable directly from within your class:- myOrigin.X = 10; Yes that would be what you would need. share | improve this answer | ...
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How do you cast a List of supertypes to a List of subtypes?

...termediate wildcard type and it will be allowed (since you can cast to and from wildcard types, just with an unchecked warning): List<TestB> variable = (List<TestB>)(List<?>) collectionOfListA; share ...
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Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition

...iginal papers SURF: Speeded Up Robust Features Distinctive Image Features from Scale-Invariant Keypoints ORB: an efficient alternative to SIFT or SURF share | improve this answer | ...
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Why doesn't the JVM cache JIT compiled code?

The canonical JVM implementation from Sun applies some pretty sophisticated optimization to bytecode to obtain near-native execution speeds after the code has been run a few times. ...