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What are the best PHP input sanitizing functions?

... much more thorough job of both stripping out all HTML and also allowing a selective whitelist of tags and attributes through. Modern PHP versions ship with the filter extension, which provides a comprehensive way to sanitize user input. Validation Making sure that submitted data is free from unexpe...
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Search for a string in Enum and return the Enum

...if the input is numeric; it just returns the parsed number, which then get cast to the enum's type. So if you want to check if some user input is a valid enum or something else, you should check for numeric content first. Since it returns a valid enum but with a value that may not exist at all in th...
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Difference between “!==” and “==!” [closed]

... false because "a" is not equals to !" " !" " means cast to bool and negate that so " " is true and !" " is false. – Zaffy Sep 8 '12 at 13:07 ...
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How to get first and last day of previous month (with timestamp) in SQL Server

... select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0) --First day of previous month select DATEADD(MONTH, DATEDIFF(MONTH, -1, GETDATE())-1, -1) --Last Day of previous month ...
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How do I print a double value with full precision using cout?

... The iostreams way is kind of clunky. I prefer using boost::lexical_cast because it calculates the right precision for me. And it's fast, too. #include <string> #include <boost/lexical_cast.hpp> using boost::lexical_cast; using std::string; double d = 3.14159265358979; cout &l...
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Use didSelectRowAtIndexPath or prepareForSegue method for UITableView?

... I'll have to pass a couple objects to the detail view. But do I use didSelectRowAtIndex or -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender ? ...
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How do I convert uint to int in C#?

...int is greater than int.MaxValue you'll get a negative result if you use a cast, or an exception if you use Convert.ToInt32. – LukeH Jul 15 '09 at 14:52 4 ...
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Inserting a Python datetime.datetime object into MySQL

... when iserting into t-sql this fails: select CONVERT(datetime,'2019-09-13 09:04:35.823312',21) this works: select CONVERT(datetime,'2019-09-13 09:04:35.823',21) easy way: regexp = re.compile(r'\.(\d{6})') def to_splunk_iso(dt): """Converts the datetime ...
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What is the curiously recurring template pattern (CRTP)?

...ality<Derived> const & op2) { Derived const& d1 = static_cast<Derived const&>(op1);//you assume this works //because you know that the dynamic type will actually be your template parameter. //wonderful, isn't it? Derived const& d2 = static_cast<Der...
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Explanation of JSONB introduced by PostgreSQL

...h a stable release, there will be two major use cases, when you can easily select between them: If you only work with the JSON representation in your application, PostgreSQL is only used to store & retrieve this representation, you should use json. If you do a lot of operations on the JSON val...