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php 获取操作系统、浏览器版本信息（持续更新） - 更多技术 - 清泛网 - 专...
...()
{
$agent = $_SERVER['HTTP_USER_AGENT'];
$os = false;
if (eregi('win', $agent) && strpos($agent, '95')){
$os = 'Windows 95';
}
else if (eregi('win 9x', $agent) && strpos($agent, '4.90')){
$os = 'Windows ME';
}
else if (eregi('win', $agent) && ereg('98', $agent)){
$os = 'Wi...
Asp.NET Web API - 405 - HTTP verb used to access this page is not allowed - how to set handler mappi
...lt;handlers>
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb...
How to clean node_modules folder of packages that are not in package.json?
...
I've seen NPM prune fail to delete things usually screwing up when my corporate repository has something borked in it. Then I have to rm-rf. It would be nice if there was a "blow everythin away then reget everything all in one go" command
– ggb667
...
Is there a performance gain in using single quotes vs double quotes in ruby?
...
$ 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("assign doub...
hash function for string
...ingly slow by hash table standards.
Second, you want to ensure that every bit of the input can/will affect the result. One easy way to do that is to rotate the current result by some number of bits, then XOR the current hash code with the current byte. Repeat until you reach the end of the string. ...
Installing Java on OS X 10.9 (Mavericks)
...
Why would you want to use 32 bit java on a 64bit OS? 64 bit java is actually faster than 32bit under Mavericks.
– MiB
Jan 23 '14 at 15:45
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How to show all shared libraries used by executables in Linux?
...n of grep doesn't support it (man indicates this is a general issue). What bit of the regexp is perl-specific?
– Bobby Jack
Sep 8 '08 at 17:36
2
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Why is  appearing in my HTML? [duplicate]
...;
// Or this
// dirname(__FILE__)
$HOME = dirname(__FILE__);
// Is this a Windows host ? If it is, change this line to $WIN = 1;
$WIN = 0;
// That's all I need
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<...
C/C++ check if one bit is set in, i.e. int variable
Is there such a way to check if bit 3 in temp is 1 or 0 without bit shifting and masking.
21 Answers
...
How to find encoding of a file via script on Linux?
... in a comment above: uchardet falsely tells me the encoding of a file was "windows-1252", although I explicitly saved that file as UTF-8. uchardet doesn't even say "with confidence 0.4641618497109827" which would at least give you a hint that it's telling you complete nonsense. file, enca and encgue...