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How to encrypt/decrypt data in php?
...I made some online research and some of them were quite confusing(at least for me).
6 Answers
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urlencode vs rawurlencode?
...he one exception is legacy systems which expect the query string to follow form-encoding style of spaces encoded as + instead of %20 (in which case you need urlencode).
rawurlencode follows RFC 1738 prior to PHP 5.3.0 and RFC 3986 afterwards (see http://us2.php.net/manual/en/function.rawurlencode.p...
Get the first element of each tuple in a list in Python [duplicate]
...
Use a list comprehension:
res_list = [x[0] for x in rows]
Below is a demonstration:
>>> rows = [(1, 2), (3, 4), (5, 6)]
>>> [x[0] for x in rows]
[1, 3, 5]
>>>
Alternately, you could use unpacking instead of x[0]:
res_list = [x for x,...
Ruby replace string with captured regex pattern
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Try '\1' for the replacement (single quotes are important, otherwise you need to escape the \):
"foo".gsub(/(o+)/, '\1\1\1')
#=> "foooooo"
But since you only seem to be interested in the capture group, note that you can index a ...
Determine the type of an object?
...) is str
True
>>> type(0) is int
True
This of course also works for custom types:
>>> class Test1 (object):
pass
>>> class Test2 (Test1):
pass
>>> a = Test1()
>>> b = Test2()
>>> type(a) is Test1
True
>>> type(b) is Te...
JavaScript is in array
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This doesn't work for old browsers (like IE < 9). There's a jQuery function for this: api.jquery.com/jQuery.inArray
– Vinicius Pinto
Oct 5 '12 at 14:42
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Why does changing 0.1f to 0 slow down performance by 10x?
...me to the world of denormalized floating-point! They can wreak havoc on performance!!!
Denormal (or subnormal) numbers are kind of a hack to get some extra values very close to zero out of the floating point representation. Operations on denormalized floating-point can be tens to hundreds of times ...
What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...T
macro, it produces a C++ source file
containing the meta-object code for
those classes. Among other things,
meta-object code is required for the
signals and slots mechanism, the
run-time type information, and the
dynamic property system.
...
jQuery Ajax File Upload
Can I use the following jQuery code to perform file upload using POST method of an ajax request ?
24 Answers
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Any way to delete in vim without overwriting your last yank? [duplicate]
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Hah, didn't know about the black hole register. Thanks for the enlightenment.
– DarkDust
Sep 3 '10 at 18:32
13
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