SAE Cloud applies Counter tool to implement access counting

SAE cloud application Counter tool implements access counting

1. Introduction

Sina SAE provides us with a cloud application platform for rapid website building, and some of the gadgets are also very interesting to use.

For example, the Counter tool, we can use it to implement an access counter.

We can find it here.

The page will display the constructor and calling examples of the tool.

<code><span><?php </span><span><span>class</span><span>SaeCounter</span> {</span>
    __construct(); <span>//构造函数，失败时抛出异常。</span>
    bool create(string name, [ int initial_value = <span>0</span> ]); <span>// 增加一个计数器name，默认值为0。成功返回true，失败返回false。</span>
    bool remove(string name); <span>// 删除名称为name的计数器。成功返回true，失败返回false。</span>
    bool exists(string name); <span>// 判断计数器name是否存在。存在返回true，不存在返回false。</span>
    mixed <span>list</span>(); <span>// 获取该应用的所有计数器。成功返回数组array，失败返回false。</span>
    mixed length(); <span>// 成功返回该应用的计数器总量，失败返回false。</span>
    mixed get(string name); <span>// 获取计数器name的value。成功返回该计数器的value，失败返回false。</span>
    bool set(string name, int value); <span>// 重新设置计数器name的值为value。成功返回true，失败返回false。</span>
    mixed mget(<span>array</span>(name1,name2,...)); <span>// 同时获取多个计数器值。成功返回hash数组，以计数器名为index，失败返回false。</span>
    mixed getall(); <span>// 获取该应用所有计数器的值。返回同mget操作。</span>
    mixed incr(string name, [ int vaule = <span>1</span> ]); <span>// 对计数器name做加法操作，默认加1。成功返回该计数器的value，失败返回false。</span>
    mixed decr(string name, [ int vaule = <span>1</span> ]); <span>// 对计数器name做减法操作，默认减1。成功返回该计数器的value,失败返回false。</span>
}<span>?></span></span></code>

Call example

<code><span><?php </span><span>try</span>{
        <span>$c</span> = <span>new</span> SaeCounter();
    }<span>catch</span>(<span>Exception</span><span>$ex</span>){
        <span>die</span>(<span>$ex</span>->getMessage());
    }
    <span>$c</span>->get(<span>'c1'</span>); <span>// 返回c1的值</span><span>$c</span>->set(<span>'c1'</span>, <span>100</span>); <span>// 返回true</span><span>$c</span>->incr(<span>'c1'</span>); <span>// 返回101</span><span>$c</span>->decr(<span>'c1'</span>); <span>// 返回100</span><span>?></span></span></code>

Creation process

First create a new counter, here create a new counter variable.

Here we set a request_counter variable, and the initial value is initially set to 0.

Add the counter code to the entry file as follows:

<code><span>//---------------添加计数器功能----------------add-time-15/09/06-pm--------</span><span>try</span>{
        <span>$c</span> = <span>new</span> SaeCounter();
  }
  <span>catch</span>(<span>Exception</span><span>$ex</span>){
        <span>die</span>(<span>$ex</span>->getMessage());
   }
    <span>$c</span>->get(<span>'request_counter'</span>);  <span>// 获取值</span><span>$c</span>->incr(<span>'request_counter'</span>); <span>// 计数器加1</span><span>//--------------计数功能添加结束---------------------------------------------</span></code>

So we can see it intuitively The latest access data can of course also be combined with our access log files to make it more complete.

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The above has introduced the SAE cloud application Counter tool to implement access counting, including aspects of it. I hope it will be helpful to friends who are interested in PHP tutorials.