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Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...尽量避免创建不必要的对象，有下面一些例子来说明这个问题：
如果你需要返回一个String对象，并且你知道它最终会需要连接到一个StringBuffer，请修改你的实现方式，避免直接进行连接操作，应该采用创建一个临时对象来做...
Calculate number of hours between 2 dates in PHP
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The newer PHP-Versions provide some new classes called DateTime, DateInterval, DateTimeZone and DatePeriod. The cool thing about this classes is, that it considers different timezones, leap years, leap seconds, summertime, etc. And on ...
Getting visitors country from their IP
... via their IP... Right now I'm using this ( http://api.hostip.info/country.php?ip= ...... )
29 Answers
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Tactics for using PHP in a high-load site
... (sigh) an alien that has just landed on the planet, albeit one that knows PHP and a few optimisation techniques.
23 Answer...
Convert DateTime to String PHP
I have already researched a lot of site on how can I convert PHP DateTime object to String. I always see "String to DateTime" and not "DateTime to String"
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PHP: Return all dates between two dates in an array [duplicate]
...tor_to_array($period) to get your array. This function is available in all PHP versions where DateInterval is available.
– Aaron Adams
Apr 26 '13 at 3:25
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PHP exec() vs system() vs passthru()
... portability has to be sacrificed for functionality. There are some things PHP just can't do well.
– Frank Crook
Apr 9 '09 at 5:10
30
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List all files in one directory PHP [duplicate]
What would be the best way to list all the files in one directory with PHP? Is there a $_SERVER function to do this? I would like to list all the files in the usernames/ directory and loop over that result with a link, so that I can just click the hyperlink of the filename to get there. Thanks!
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PHP DateTime::modify adding and subtracting months
... date 2010-02-31.
The second month (February) only has 28 days in 2010, so PHP auto-corrects this by just continuing to count days from February 1st. You then end up at March 3rd.
How to get what you want:
To get what you want is by: manually checking the next month. Then add the number of days n...
'AND' vs '&&' as operator
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+1: this should be made loud and clear in PHP documentation, or PHP should change and give same precedence to these operators or DEPRECATE and or once for all. I saw too many people thinking they are exactly the same thing and the answers here are more testimonials.
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