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由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...个事，我想以这个事来粗略地和大家讨论一下网站性能的问题。因为仓促，而且完全基于...12306.cn网站挂了，被全国人民骂了。我这两天也在思考这个事，我想以这个事来粗略地和大家讨论一下网站性能的问题。因为仓促，而且...
jQuery Ajax File Upload
...ed. E.g. through FormData object, but unfortunately it is not supported by all/old browsers.
FormData support starts from following desktop browsers versions.
IE 10+
Firefox 4.0+
Chrome 7+
Safari 5+
Opera 12+
For more detail, see MDN link.
...
How to get the request parameters in Symfony 2?
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The naming is not all that intuitive:
use Symfony\Component\HttpFoundation\Request;
public function updateAction(Request $request)
{
// $_GET parameters
$request->query->get('name');
// $_POST parameters
$request->r...
Check if URL has certain string with PHP
...
worked for me with php
if(strpos($_SERVER['REQUEST_URI'], 'shop.php') !== false){
echo 'url contains shop';
}
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How do I catch a PHP fatal (`E_ERROR`) error?
...ost PHP errors, but it doesn't work for fatal ( E_ERROR ) errors, such as calling a function that doesn't exist. Is there another way to catch these errors?
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PHP Fatal error: Using $this when not in object context
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@Sarfraz No offense, but it is still wrong. You can call an instance method with ::. It is against E_STRICT, but it does work as long as the method body does not reference the instance scope, e.g. uses $this. Also, self::foo will not point to $this->foo. It references a clas...
Simplest way to profile a PHP script
...tem secs/ cumm
%Time (excl/cumm) (excl/cumm) (excl/cumm) Calls call s/call Memory Usage Name
--------------------------------------------------------------------------------------
100.0 0.00 0.00 0.00 0.00 0.00 0.00 1 0.0000 0.0009 0 main
56.9 0.00 0.00 0...
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...
How to benchmark efficiency of PHP script
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If you actually want to benchmark real world code, use tools like Xdebug and XHProf.
Xdebug is great for when you're working in dev/staging, and XHProf is a great tool for production and it's safe to run it there (as long as you read t...
check if jquery has been loaded, then load it if false
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I believe appending a script tag to body works in all browsers.
– Steven Lu
Jan 6 '13 at 21:26
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