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selecting unique values from a column
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BTW: using explicit column names in SELECT uses less resources in PHP when you're getting a large result from MySQL
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The transaction log for the database is full
...o set the Transaction log size bigger than that estimation, anyway if disk allocation is not an issue, allocate at the beginning plenty space, for data and log as well. It improves performance. Don't us autogrow by 10%, do it by some few of GB, so performance will be good enough.
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C# 'is' operator performance
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@Binary Worrier- Your new operator allocations of classes are going to completely overshadow any performance differences in the 'is' operations. Why don't you remove those new operations, by reusing two different pre-allocated instances, and then re-run the co...
How can I efficiently select a Standard Library container in C++11?
...expensive in terms of performance (each newly inserted item costs a memory allocation), but it is consistent. It also offers the occasionally indispensable ability to shuffle items around for virtually no performance cost, as well as to trade items with other std::list containers of the same type at...
Alternative for PHP_excel
Is there any alternative for PHP_excel which can "Export to XLSX/XLS" file in a customized format?
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How to list running screen sessions?
... edited Oct 24 '17 at 14:23
PHP Bugs
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answered Feb 11 '09 at 23:01
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window+nginx+php-cgi的php-cgi线程/子进程问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
window+nginx+php-cgi的php-cgi线程/子进程问题见bbshttp: bbs csdn net topics 390803643 close正常的配置情况下,window的php-cgi是不会出现多线程 子进程的,例如以下配置fastcgi_pass 见bbs
http://bbs.csdn.net/topics/390803643/close
正常的配置情况下,window...
Problems with lib-icu dependency when installing Symfony 2.3.x via Composer
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update your php-intl extension, that's where the icu error comes from!
sudo aptitude install php5-intl // i.e. ubuntu
brew install icu4c // osx
check the extension is enabled and properly c...
PHP - how to best determine if the current invocation is from CLI or web server?
I need to determine whether the current invocation of PHP is from the command line (CLI) or from the web server (in my case, Apache with mod_php).
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List comprehension in Ruby
...ators and co routines to do all calculations in a streaming manner without allocating storage at all (except temp variables) until (iff) the results land in an array variable - this is the purpose of the square brackets in the python example, to collapse the comprehension to a set of results. Ruby h...