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Example invalid utf8 string?
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In PHP:
$examples = array(
'Valid ASCII' => "a",
'Valid 2 Octet Sequence' => "\xc3\xb1",
'Invalid 2 Octet Sequence' => "\xc3\x28",
'Invalid Sequence Identifier' => "\xa0\xa1",
'Valid 3 Octet Sequ...
How do you implement a good profanity filter?
...user input, search queries, and situations where the input text can potentially contain profanity or undesirable language. Oftentimes this needs to be filtered out.
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Regular expression for a hexadecimal number?
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If you're using Perl or PHP, you can replace
[0-9a-fA-F]
with:
[[:xdigit:]]
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Access-Control-Allow-Origin wildcard subdomains, ports and protocols
I'm trying to enable CORS for all subdomains, ports and protocol.
11 Answers
11
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How to remove globally a package from Composer?
I ran this command to install globally PHPUnit :
2 Answers
2
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How to change href of tag on button click through javascript
...there's no need here, this has been a DOM property forever, .href works in all browsers...for example would you use .getAttribute("id") instead of just .id? :)
– Nick Craver♦
Dec 6 '10 at 10:34
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SVN encrypted password store
I installed SVN on a Ubuntu machine and I can't get my head around something.
3 Answers
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What is the difference between Scope_Identity(), Identity(), @@Identity, and Ident_Current()?
...know Scope_Identity() , Identity() , @@Identity , and Ident_Current() all get the value of the identity column, but I would love to know the difference.
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What is the minimum valid JSON?
... or a JSONArray as specified by RFC 4627.
snipped
This would mean that all JSON values (including strings, nulls and numbers) are accepted by the JSON object, even though the JSON object technically adheres to RFC 4627.
Note that you could therefore stringify a number in a conformant browser via...
内存管理内幕：动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...他形式的内存管理更慢。
垃圾收集错误引发的缺陷难于调试。
如果您忘记将不再使用的指针设置为 null，那么仍然会有内存泄漏。
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结束语
一切都需要折衷：性能、易用、易于实现、支持线程的能力等，这里只列...