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Can I restore a single table from a full mysql mysqldump file?
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For not adding/removing DROP TABLE, it is more useful to match by Table structure for table comment, instead of matching by CREATE TABLE. This will ensure that next table would not be dropped if one forgets to remove its DROP TABLE statement, and allows piping for si...
Best approach to remove time part of datetime in SQL Server
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For more recent versions of SQL, using date instead of datetime avoids the need to deal with hours. Use the following sample: declare noTime date = getdate(), withTime datetime = getdate() select @noTime,@withTime
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Find first element in a sequence that matches a predicate
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@geekazoid: seq.find(&method(:predicate)) or even more concise for instance methods e.g.: [1,1,4].find(&:even?)
– jfs
Jul 20 '15 at 5:07
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Match multiline text using regular expression
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They both mean the same; [\s\S] is a bit more explicit ("match any character that is either whitespace or non-whitespace"), . is easier to read, but you need to look for the (?s) or DOTALL modifier in order to find out whether newlines are included or not. I'd prefe...
Server.UrlEncode vs. HttpUtility.UrlEncode
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What does enctype='multipart/form-data' mean?
...cation/x-www-form-urlencoded but application/x-www-form-urlencoded will be more efficient
When you are writing server-side code:
Use a prewritten form handling library
Most (such as Perl's CGI->param or the one exposed by PHP's $_POST superglobal) will take care of the differences for you....
Tables instead of DIVs [duplicate]
...le; use it when you have tabular data, but not otherwise.
Then you have a more semantic page and you don't need quite as many classes defined in your CSS; you can target the tags directly instead. Possibly most importantly, you have a page that will score much better with Google (anecdotally) than...
What's the difference between echo, print, and print_r in PHP?
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print and echo are more or less the same; they are both language constructs that display strings. The differences are subtle: print has a return value of 1 so it can be used in expressions whereas echo has a void return type; echo can take mult...
Big-O for Eight Year Olds? [duplicate]
I'm asking more about what this means to my code. I understand the concepts mathematically, I just have a hard time wrapping my head around what they mean conceptually. For example, if one were to perform an O(1) operation on a data structure, I understand that the number of operations it has to p...
PHP - iterate on string characters
...oreach ($array as $char) {
echo $char;
}
You can check the PHP docs for more information: str_split
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