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How to remove duplicate values from a multi-dimensional array in PHP
How can I remove duplicate values from a multi-dimensional array in PHP?
19 Answers
19...
boost::filesystem指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...统中的操作可以在多个进程中异步进行,这可能引起许多问题,也就是说文件系统不是串行系统。
文件系统具有很大的系统相关性,不同的操作系统提供了不同的文件系统,相同的操作系统也可以存在众多区别。这使得编写具...
py2exe - generate single executable file
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PyInstaller will create a single .exe file with no dependencies; use the --onefile option. It does this by packing all the needed shared libs into the executable, and unpacking them before it runs, just as you describe (EDIT: py2ex...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...过程中的各种tips前言iOS开发过程中,总有那么一些个小问题让人纠结,它们不会让程序崩溃,但是会让人崩溃。除此之外,还将分享一些细节现在我通过自己的总...前言
iOS开发过程中,总有那么一些个小问题让人纠结,它们不...
?: operator (the 'Elvis operator') in PHP
I saw this today in some PHP code:
5 Answers
5
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How to check that a string is an int, but not a double, etc.?
... (ctype_digit($testcase)) {
echo "The string $testcase consists of all digits.\n";
} else {
echo "The string $testcase does not consist of all digits.\n";
}
}
?>
The above example will output:
The string 1820.20 does not consist of all digits.
The string 10002 consists...
C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...是为了避免不必要的拷贝。使拷贝动作高效并且防止剥离问题发生的一个简单办法是使容器包含指针而不是对象。
第4条:调用empty而不是检查size()是否为0。
理由很简单:empty对所有的标准容器都是常数时间操作,而对...
Checking to see if one array's elements are in another array in PHP
I have two arrays in PHP as follows:
7 Answers
7
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How do I immediately execute an anonymous function in PHP?
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For PHP7: see Yasuo Ohgaki's answer: (function() {echo 'Hi';})();
For previous versions: the only way to execute them immediately I can think of is
call_user_func(function() { echo 'executed'; });
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PHP Regex to check date is in YYYY-MM-DD format
...ing to be more fuss -- and February 29 cannot be validated with a regex at all.
The drawback of this approach is that you have to be very careful to reject all possible "bad" inputs while not emitting a notice under any circumstances. Here's how:
explode is limited to return 3 tokens (so that if ...
