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Getting the first character of a string with $str[0]
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Does PHP $str[0] take into account that there can be 2Byte long chars? UTF and such? (even though substr() does not help with it either!)
– Tomer W
Jun 26 '13 at 13:29
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在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术
...利用周日休息一下，但是一醒来就收到消息说某服务有些问题。于是赶紧连线了一堆正在处理事件的工程师，等拿到初步的原因分析之后，已经4小时之后了。
“墨菲定律”，一位工程师说，“前几天觉得这个地方有些隐患，已...
PHP Session Security
What are some guidelines for maintaining responsible session security with PHP? There's information all over the web and it's about time it all landed in one place!
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What's the difference between :: (double colon) and -> (arrow) in PHP?
There are two distinct ways to access methods in PHP, but what's the difference?
6 Answers
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Is there a function to make a copy of a PHP array to another?
Is there a function to make a copy of a PHP array to another?
19 Answers
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file_get_contents(“php://input”) or $HTTP_RAW_POST_DATA, which one is better to get the body of JSON
file_get_contents("php://input") or $HTTP_RAW_POST_DATA - which one is better to get the body of JSON request?
6 Answers...
如何查看Oracle用户的SQL执行历史记录？ - 数据库(内核) - 清泛网 - 专注C/...
...来源：http://www.cnblogs.com/net2012/archive/2013/01/21/2869636.html
问题：如何知道一个session都执行过哪些SQL语句？（查看当前比较容易，历史的呢？怎么复原sql的执行场景——事务关系、执行序列、单SQL还是存储过程）
【方法一】查...
PDO closing connection
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According to documentation you're correct (http://php.net/manual/en/pdo.connections.php):
The connection remains active for the lifetime of that PDO object. To
close the connection, you need to destroy the object by ensuring that
all remaining references to it are de...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...（如Windows Explorer扩展开发）。
环境
shell编程跟java、php编程一样，只要有一个能编写代码的文本编辑器和一个能解释执行的脚本解释器就可以了。
OS
当前主流的操作系统都支持shell编程，本文档所述的shell编程是指Linux下的sh...
js/php判断终端类型：PC访问、手机访问、微信访问 - 更多技术 - 清泛网 - ...
js/php判断终端类型：PC访问、手机访问、微信访问一般也可以在前端用js来判断访问终端，代码如下：<script>function GetQueryString(name) { var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)"); v 一般也可以在前端用js来判断访问终端，代码...