php获取api接口数据的方法

       API是应用程序的开发接口，在开发程序的时候，我们有些功能可能不需要从到到位去研发，我们可以拿现有的开发出来的功能模块来使用，而这个功能模块，就叫做库(libary)。比如说：要实现数据传输的安全，这就要使用加密技术，使用加密技术就要用到加密算法，而加密算法，已经有好心人，帮我们开发出来了加密算法库，你直接就可以调用，不需要再开发算法。

     在技术交流群，大家有探讨稳定获取淘宝商品主图、价格、标题，及sku的完整解决方案。这个引起了我技术挑战的兴趣。

目前，自己做了压测，QPS高、出滑块概率极低，API整体稳定，可满足业务场景的性能需求。

1、get方式请求api接口

file_get_contents函数

$a = file_get_contents(“http://www.a.com”);

如果接口返回json格式的数据，则要转为数组r e = j s o n d e c o d e ( re = json_decode(re=json 
d
​
 ecode(a,true);

2、 post方式请求接口        

curl扩展函数

function request_by_curl($remote_server,$post_string,$use_post=true){   if(function_exists('curl_init')){      $ch = curl_init();      curl_setopt($ch,CURLOPT_URL,$remote_server);       if($use_post){         curl_setopt($ch,CURLOPT_POST, 1);          curl_setopt($ch,CURLOPT_POSTFIELDS,$post_string);      }       curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);       $data = curl_exec($ch);      curl_close($ch);           return $data;   }else{      return '请先安装curl';   }}     $post_string为数组，如array("a"=>1)

curl扩展函数也用于get方式请求数据

查看curl是否安装，phpinfo():

 4、返回示例

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来源地址：https://blog.csdn.net/weixin_44353800/article/details/129138735