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How to convert array to SimpleXML
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@wout Good catch. Added. I did an int cast check instead of is_numeric because is_numeric can give some, although technically expected, results that would really throw you off.
– Francis Lewis
Jun 21 '17 at 21:51
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Sorting an IList in C#
...word of caution: this approach assumes that the IList<T> list can be cast to the non-generic IList interface. If you code your own class implementing the IList<T> interface, make sure you also implement the non-generic IList interface, or the code will fail with a class cast exception.
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Using scanf() in C++ programs is faster than using cin?
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also use cin.tie(static_cast<ostream*>(0)); for better performance
– Mohamed El-Nakib
Feb 5 '14 at 7:58
add a comment
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Better way to check variable for null or empty string?
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Beware false negatives from the trim() function — it performs a cast-to-string before trimming, and thus will return e.g. "Array" if you pass it an empty array. That may not be an issue, depending on how you process your data, but with the code you supply, a field named question[] could ...
Checking for empty arrays: count vs empty
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Alternatively, you can cast the variable as a boolean (implicitly or explicitly):
if( $value )
{
// array is not empty
}
if( (bool) $value )
{
// array is still not empty
}
This method does generate an E_NOTICE if the variable is not define...
Generate random int value from 3 to 6
...CLARE @maxval TINYINT, @minval TINYINT
select @maxval=24,@minval=5
SELECT CAST(((@maxval + 1) - @minval) *
RAND(CHECKSUM(NEWID())) + @minval AS TINYINT)
And that was taken directly from this link, I don't really know how to give proper credit for this answer.
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PHP - Merging two arrays into one array (also Remove Duplicates)
...hird argument. If it is not a string, or the contents cannot be implicitly cast to a string, you will need the SORT_REGULAR argument.
– David Baucum
Aug 19 '16 at 19:33
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D Programming Language in the real world? [closed]
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Unlike C and C++, it assumes that you don't want to use pointers, unsafe casts, manual memory management, etc, everywhere in your code, because they're error prone, and assumes that you don't want to sift through multi-page template error messages when you screw up just to use resizable arrays.
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How to find out if you're using HTTPS without $_SERVER['HTTPS']
... I had a small problem with $_SERVER['SERVER_PORT'] !== 443 I had to cast $_SERVER['SERVER_PORT] to an integer like so: intval($_SERVER['SERVER_PORT]) !== 443
– m.e.conroy
Jun 12 '15 at 15:34
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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
...s not suffer of performance issues.
Using Option 1 and 2, aka the COLLATE cast approach, can lead to potential bottleneck, cause any index defined on the column will not be used causing a full scan.
Even though I did not try out Option 3, my hunch is that it will suffer the same consequences of op...