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glob exclude pattern
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The pattern rules for glob are not regular expressions. Instead, they follow standard Unix path expansion rules. There are only a few special characters: two different wild-cards, and character ranges are supported [from glob].
So you can exclude some files with pat...
Omitting the second expression when using the if-else shorthand
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This is also an option:
x==2 && dosomething();
dosomething() will only be called if x==2 is evaluated to true. This is called Short-circuiting.
It is not commonly used in cases like this and you really shouldn't write code like this. I en...
PHP: How to remove all non printable characters in a string?
...ut everything from 0-31 and 127-255 with this:
$string = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $string);
It matches anything in range 0-31, 127-255 and removes it.
8 bit extended ASCII?
You fell into a Hot Tub Time Machine, and you're back in the eighties.
If you've got some form of 8 bi...
What's the best way to set a single pixel in an HTML5 canvas?
The HTML5 Canvas has no method for explicitly setting a single pixel.
14 Answers
14
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Different return values the first and second time with Moq
....1622), you can setup a sequence of events using SetupSequence. Here's an example:
_mockClient.SetupSequence(m => m.Connect(It.IsAny<String>(), It.IsAny<int>(), It.IsAny<int>()))
.Throws(new SocketException())
.Throws(new SocketException())
.Returns(true...
Printing hexadecimal characters in C
I'm trying to read in a line of characters, then print out the hexadecimal equivalent of the characters.
7 Answers
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CROSS JOIN vs INNER JOIN in SQL
...ults, Innerjoin will only return 100 rows in the same situation.
These 2 examples will return the same result:
Cross join
select * from table1 cross join table2 where table1.id = table2.fk_id
Inner join
select * from table1 join table2 on table1.id = table2.fk_id
Use the last method
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Where is PATH_MAX defined in Linux?
Which header file should I invoke with #include to be able to use PATH_MAX as an int for sizing a string?
5 Answers
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Is there a performance gain in using single quotes vs double quotes in ruby?
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$ ruby -v
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.0.0]
$ cat benchmark_quotes.rb
# As of Ruby 1.9 Benchmark must be required
require 'benchmark'
n = 1000000
Benchmark.bm(15) do |x|
x.report("assign single") { n.times do; c = 'a string'; end}
x.report("a...
Removing X-Powered-By
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I think that is controlled by the expose_php setting in PHP.ini:
expose_php = off
Decides whether PHP may expose the fact that it is installed on the server (e.g. by adding its signature to the Web server header). It is no security threat in any way, but...