What's the correct way to round a PHP string to two decimal places? 24 Answers 24 ...

I am confused while using php to handle date/time. 12 Answers 12 ...

I'm looking for the name of the PHP function to build a query string from an array of key value pairs. Please note, I am looking for the built in PHP function to do this, not a homebrew one (that's all a google search seems to return). There is one, I just can't remember its name or find it on php...

... There is no difference in PHP. float, double or real are the same datatype. At the C level, everything is stored as a double. The real size is still platform-dependent. See the manual for more details: http://www.php.net/manual/en/language.types.flo...

...prefer using one of the native XML extensions since they come bundled with PHP, are usually faster than all the 3rd party libs and give me all the control I need over the markup. DOM The DOM extension allows you to operate on XML documents through the DOM API with PHP 5. It is an implementation...

...碎片 缓存本地化友好 通用性，兼容性，可移植性，易调试 现状 目前大部分服务端程序使用glibc提供的malloc/free系列函数，而glibc使用的ptmalloc2在性能上远远弱后于google的tcmalloc和facebook的jemalloc。 而且后两者只需要使用LD_PREL...

Is there a PHP Sandbox, something like JSFiddle is to JS? 1 Answer 1 ...

探讨nginx与php-fpm是不是以多进程多线程方式运行的Nginx在nginx的配置文件中可以设置开启多少个nginx进程，如下：worker_processes 2;同时也可以设置每个进程的最大连接数，如下：worker_co Nginx 在nginx的配置文件中可以设置开启多少...

... name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the script would run out of memory, whatever occurs first. If you are doing $whatever ...

...ble to install the necessary PDO parts from apt using sudo apt-get install php5-mysql There is no limitation between using PDO and mysql_ simultaneously. You will however need to create two connections to your DB, one with mysql_ and one using PDO. ...