underscore cdn

The technical principle of CDN (content distribution network)Source: It World Network release time: 2011-11-15 14:25 read: 309 times original link full screen reading [favorites] 1. Foreword The rapid development of the Internet, to people's work and life has brought great convenience, the Internet service quality and access to the speed of higher requirements, although the increasing bandwidth, the number of users is also increasing, by the Web serve

It's another day, and the code is often missed! Underscore array Methods

Php converts an upper-case name to an underscore (_) to a separated name, and a php underline Sometimes you need to convert the uppercase letters in a string to the lowercase letters (_ +). This problem occurs when naming variables. You can directly run the following code: $ Name = 'apppromozhongqiu2014activestatusselector '; echo cc_format ($ name); function cc_format ($ name) {$ temp_array = array (); for ($ I = 0; $ I

At the same time we found that when we visited the variables we declared, there was self. And the way of access that begins with "_", what is the difference between these two ways?Let's take a look:@property (retain, nonatomic) NSMutableArray *nameArray;self.nameArray是访问属性的,而_nameArray是访问实例变量的.property is an integration of instance variables plus the Get,set method, and he is primarily responsible for an external access to an interface!Instance variables can only be accessed in this class and ca

Definition and usage The __construct () function creates a new SimpleXMLElement object. If successful, the function returns an object. If it fails, it returns false. Grammar __construct (Data,options,is_url,ns,is_prefix) Parameters Description Data Necessary. The path or URL of a well-formed XML string or XML document. Options Optional. Specifies the additional Libxml parameters. Is_url Optional. Specifies whether the data paramete

The PHP form submission control name contains a period (.), which is converted to an underscore. Recently, when I was working on a company project, I found a strange problem. when I submitted a normal form, I found that the submitted value could not be obtained normally, I found a strange problem when I was working on a company project recently. I submitted a normal form and found that the submitted value could not be obtained normally, I was confused

CI (CodeIgniter) framework, routes.php set correctly, but display server error, is __construct less write an underscore

Recently encountered a problem, when using TP to do the system, I built the table is "Tp_admin_user" but to use the model is "AdminUserModel.model.class.php", how should I do?Workaround:phpnamespace Admin\model; Use Think\model; class extends model{ protected$tableName = ' admin_user '; does not contain table prefixes protected$trueTableName = ' tp_admin_user '; include table prefix }Look at the details:http://Document.thinkphp.cn/manual_3_2.html#define_modelthinkphp If the table

When I was working on a company project recently, found a strange problem, submit a normal form, unexpectedly found that can not get the value of the submission, this discovery, unavoidably let me start confused, at the beginning of time I think that my service is problematic, not normal to write to the database, and then detect the SQL statement found, The original problem actually appeared in the acquisition of data, get to the data is empty, and later a debugging found that the original submi

Match any white space character \s Match any non-whitespace character \w Matches any character and number. The difference between the character and [: Alnum:] is \w including the underscore character \w Match any non-empty string * Wildcard characters. Finds records that contain 0 or more occurrences of a given subexpression in the text + Finds records that contain 1

What is CDN CDN stands for content delivery network (CDN. Is a network application located between the network layer and the application layer. The purpose is to add a new network architecture to the existing Internet, publish the website content to the "edge" closest to the user's network, so that the user can obtain the desired content nearby, solve the interne

The development of specialized CDN services in China has been in existence for 16 years. With the development of the Internet in China, CDN service becomes more and more important as a courier of Internet content. In addition to the CDN technology revolution, the CDN market landscape has also undergone a huge change. F

CDN Caching those Things What is a CDN. When it comes to the role of CDN, it can be likened to the experience of buying train tickets for 8 years: 8 years ago, there is no fire ticket for sale Point one said, 12306.cn is not to mention. At that time the train tickets can only be bought in the railway station ticket hall, and I live in the small county does

CDNThe full name is content delivery network, that is, content delivery network. The basic idea is to avoid bottlenecks and links on the Internet that may affect data transmission speed and stability, so that content transmission can be faster and more stable. A layer of smart virtual network formed by placing node servers in various parts of the network on the basis of the existing Internet, the CDN system can redirect users' requests to the nearest

Cloud era, how to use CDN Service for overseas users to visit the domestic website accelerationThis article blog address: http://www.cnblogs.com/taosha/p/6760079.html, you can freely reproduced, please keep the source, thank you for your cooperation!As we all know, overseas users visit the domestic website speed is unsatisfactory, the main reason is the geographical distance is far, China to overseas internet export bandwidth is limited and in the mid

CDN Cache Those things (reprint)Original address: http://bbs.qcloud.com/forum.php?mod=viewthreadtid=3775Note: The original text copy, just as their next study backup, do not spray, thank you ~What is a CDN?When it comes to the role of CDN, it can be likened to the experience of buying a train ticket for 8 years: 8 years ago, there is no fire ticket consignment po

What is a CDN? About the CDN is what, prior to computer Pepsi Netizen detailed introduction. CDN is the abbreviation of Content Delivery Network, that is the meaning of "contents distribution network". Generally speaking of the Cdn acceleration, generally refers to the Web site acceleration or user download resources

is cached locally to increase the response speed and save bandwidth. Server acceleration, the Cache is deployed on the front-end of the server and serves as the front-end server of the Web server. This improves the performance of the Web server and speeds up access. If multiple Cache acceleration servers are distributed across different regions, You need to effectively manage the Cache network to guide users to access the nearest node and perform global load balancing. This is the basic idea of

I. Working Principle of CDN The content delivery network (CDN) uses intelligent routing and traffic management technologies to promptly discover the acceleration nodes that provide visitors with the fastest response, and direct visitor requests to the acceleration nodes, provided by the acceleration NodeContent Service. Using the content delivery and replication mechanism,

How to build your CDN server At present, in Free CDN market, 360 because of "free" and the bigger, accelerate the music to do very early. But because the free node is not many, many users have been strong away. Safety treasure is also good now. At present, the free CDN market in China has shown tripod trend. But why do I also need to build a