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What does $1 [QSA,L] mean in my .htaccess file?

...)$ (matches any URL except the server root), it will be rewritten as index.php?url=$1 which means a request for ollewill be rewritten as index.php?url=olle). QSA means that if there's a query string passed with the original URL, it will be appended to the rewrite (olle?p=1 will be rewritten as inde...
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php array为空的判断 - C/C++ - 清泛网 - 专注C/C++及内核技术

...这两种方法足以应对简单数组和多维数组是否为空的判断问题,个人一般用empty()来做数组非空判断,这样感觉代码看起来更容易理解。 转自: http://www.lutuzhi.com/theweb/433.html php array 数组 为空判断
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Using str_replace so that it only acts on the first match?

...ormance', if performance were the primary concern, we would not be writing PHP! Something other than '/' could be used to wrap the pattern, perhaps '~', which would help avoid the escaping problem to some degree. It depends what the data is, and where it came from. – ThomasReds...
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What is the benefit of zerofill in MySQL?

...rkByers, Practically speaking though, wouldn't most client-libraries (e.g. PHP) simply strip the zeros off before they hand it over to the application code? If so, then it really seems somewhat pointless. A bad design in the early days of MySQL. – Pacerier May...
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Discuz X 首页白板解决之道 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...在合适位置打印特定内容然后exit(0);查看结果,分析出现问题的 1、开启Debug,及url后面跟 &debug=yes,也是网上最多的方法,但可能往往没有效果。 2、排除法,代码一段段的排查,在合适位置打印特定内容然后exit(0);查看结果,...
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Reference: Comparing PHP's print and echo

What is the difference between PHP's print and echo ? 1 Answer 1 ...
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How do I properly escape quotes inside HTML attributes?

... If you are using PHP, try calling htmlentities or htmlspecialchars function. share | improve this answer | follow ...
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PHP开发利器EPP4发布 基于Eclipse核心 - IT产品资讯 - 清泛网 - 专注C/C++及内核技术

... 1、修正PHP4、PHP5.5语法兼容。 2、彻底修正了行号丢失问题。 3、完美兼容Window7 操作系统。 4、重新修正了PHP支持内核反应速度更快。 5、延续了Zend debuger PHP断点调试功能。 6、去除了半自动代码提示改为时时提示。 7、增...
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Facebook Post Link Image

...TML is valid - and the same goes for your javascript and server-side code (PHP, ASP, etc.). I had a small PHP error in a piece of code that was executing as a separate call to the server from the main page. Due to a number of bizarre coincidences, that code was generating a 500 error - but ONLY for ...
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PHP连接MySQL报错:Fatal error: Call to undefined function mysql_connec...

问题描述】 PHP测试连接MySQL的程序如下: <?php $host='localhost'; $user_name='root'; $password='mysql'; $conn=mysql_connect($host,$user_name,$password); if (!$conn) {     die('数据库连接失败:'.mysql_error()); } echo '数据库连接成功!'; if (mysql_clos...