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Best way to check if a URL is valid

... You can use a native Filter Validator filter_var($url, FILTER_VALIDATE_URL); Validates value as URL (according to » http://www.faqs.org/rfcs/rfc2396), optionally with required components. Beware a valid URL may not specify the HTTP protocol http:// so further val...
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mysql -> insert into tbl (select from another table) and some default values [duplicate]

... INSERT INTO offer_masti.city (NULL, '1', '1', citydb.city_name, NULL, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP) select test.cities.city as city_name from test.cities as citydb; i am using this query it give me error can any one help me to solve...
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How can I convert JSON to CSV?

...this: { "pk": 22, "model": "auth.permission", "codename": "add_logentry", "content_type": 8, "name": "Can add log entry" }, ......] Here is my code to generate CSV from that: import csv import json x = """[ { "pk": 22, "model": "auth.permission", ...
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Is there a command to refresh environment variables from the command prompt in Windows?

... :SetFromReg "%WinDir%\System32\Reg" QUERY "%~1" /v "%~2" > "%TEMP%\_envset.tmp" 2>NUL for /f "usebackq skip=2 tokens=2,*" %%A IN ("%TEMP%\_envset.tmp") do ( echo/set %~3=%%B ) goto :EOF :: Get a list of environment variables from registry :GetRegEnv "%WinDir%\Syst...
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Print current call stack from a method in Python code

...port traceback def f(): g() def g(): for line in traceback.format_stack(): print(line.strip()) f() # Prints: # File "so-stack.py", line 10, in <module> # f() # File "so-stack.py", line 4, in f # g() # File "so-stack.py", line 7, in g # for line in traceback.form...
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Is there a way to include commas in CSV columns without breaking the formatting?

... Enclose the field in quotes, e.g. field1_value,field2_value,"field 3,value",field4, etc... See wikipedia. Updated: To encode a quote, use ", one double quote symbol in a field will be encoded as "", and the whole field will become """". So if you see the follow...
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WCF Service , how to increase the timeout?

...tamante: Learning WCF http://ecx.images-amazon.com/images/I/51GNuqUJq%2BL._BO2,204,203,200_PIsitb-sticker-arrow-click,TopRight,35,-76_AA240_SH20_OU01_.jpg and you also spend some time watching her 15-part "WCF Top to Bottom" screencast series - highly recommended! For more advanced topics I recom...
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Is it possible to run a single test in MiniTest?

...b -l 25 Yup! Use Nick Quaranto's "m" gem. With it you can say: m spec/my_spec.rb:25 share | improve this answer | follow | ...
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FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)

...pp.Fragment; namespace Support4 { [Activity (Label = "@string/fragment_pager_support")] [IntentFilter (new[]{Intent.ActionMain}, Categories = new[]{ "mono.support4demo.sample" })] public class FragmentPagerSupport : Activity //public class FragmentPagerSupport : FragmentActivity ...
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Targeting .NET Framework 4.5 via Visual Studio 2010

...en your project in VS2010. Create a text file in your project named Compile_4_5_CSharp.targets with the following contents. (Or just download it here - Make sure to remove the ".txt" extension from the file name): <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/ms...