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淘宝大秒系统设计详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...系统,文章主要介绍大秒系统以及这种典型读数据的热点问题的解决思路和实践经验。一些数据
大家还记得2013年的小米秒杀吗?三款小米手机各11万台开卖,走的都是大秒系统,3分钟后成为双十一第一家也是最快破亿的旗舰店...
How to convert an array into an object using stdClass() [duplicate]
...ct->$key = $value;
}
return $object;
}
or in full code:
<?php
function convertToObject($array) {
$object = new stdClass();
foreach ($array as $key => $value) {
if (is_array($value)) {
$value = convertToObject($value);
}
...
Are PHP functions case sensitive?
...gging through some code, and I found some calls to mySQL_fetch_array . Is PHP case sensitive about function names? I recall reading this somewhere but can't seem to find any reference to it.
...
Best way to test for a variable's existence in PHP; isset() is clearly broken
...f isset().
Since this is takes the array to check as a function argument, PHP will still raise "notices" if the array itself doesn't exist. In some cases, it can validly be argued that each dimension should have been initialised first, so the notice is doing its job. For other cases, a "recursive" ...
How to find out if you're using HTTPS without $_SERVER['HTTPS']
...RVER['SERVER_PORT'] == 443;
}
The code is compatible with IIS.
From the PHP.net documentation and user comments :
1) Set to a non-empty value if the script was queried through the HTTPS protocol.
2) Note that when using ISAPI with IIS, the value will be "off" if the request was not made ...
Mozilla PDF.js:PDF在线预览 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
1.打开任意想打开的pdf文件(这就是github上的FAQ的第一个问题)
2.能够通过.net后台动态的控制与打开pdf有关的参数
第一个问题:
我们只用修改viewer.js文件中的pdf路径参数即可:
var DEFAULT_URL = '09.pdf';
如果pdf文件与viewer.html不...
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...
Static class initializer in PHP
...
// file Foo.php
class Foo
{
static function init() { /* ... */ }
}
Foo::init();
This way, the initialization happens when the class file is included. You can make sure this only happens when necessary (and only once) by using autolo...
How can I detect if the user is on localhost in PHP?
...y web application is on the server it resides on? If I remember correctly, PHPMyAdmin does something like this for security reasons.
...
How to call a JavaScript function from PHP?
How to call a JavaScript function from PHP?
10 Answers
10
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