PHP about API interface example sharing

API is a calling interface left by the operating system to the application program. The application program causes the operating system to execute the application program's commands (actions) by calling the operating system's API. This article mainly shares with you PHP API interface examples, hoping to help everyone.

PHP generates JSON data

json_encode($value) method

(response.php and testapi.php)

Communication standard format:

code status code message prompt information data return data

How json encapsulates communication data method

Response class

1. <?php
   classResponse{
   /**
   *按json方式输出通信数据
   *@param integer $code 状态码
   *@param string $message 提示信息
   *@param array $data 数据
   *return string
   */
   publicstaticfunction json($code,$message=&#39;&#39;,$data=array()){
   if(!is_numeric($code)){
   return&#39;&#39;;
   }
   $result=array(
   &#39;code&#39;=>$code,
   &#39;message&#39;=>$message,
   &#39;data&#39;=>$data
   );
   echo json_encode($result);
   exit;
   }
   }

Instance use

1. <?php
   require_once(&#39;./apitest.php&#39;);
   $arr=array(
   &#39;id&#39;=>1,
   &#39;name&#39;=>&#39;huwei&#39;,
   );
   Response::json(200,&#39;数据返回成功&#39;,$arr);

PHP to generate XML data

1. Assembly String

2. Use system classes

DomDocument

XMLWriter

SimpleXML

to encapsulate the XML communication interface

Encapsulation method

/**
*按XML方式输出通信数据
*@param integer $code 状态码
*@param string $message 提示信息
*@param array $data 数据
*return string
*/
publicstaticfunction xml($code,$message='',$data=array()){
if(!is_numeric($code)){
return'';
}
$result=array(
'code'=>$code,
'message'=>$message,
'data'=>$data
);
header("Content-Type:text/xml");//将头信息转换为XML格式
$xml="<?xml version=&#39;1.0&#39; encoding=&#39;UTF-8&#39;?>\n";
$xml.="<root>\n";
$xml.=self::xmlToEncode($result);
$xml.="</root>";
return $xml;
}
publicstaticfunction xmlToEncode($data){
$xml=$attr="";
foreach($data as $k=>$v){
if(is_numeric($k)){
$attr=" id=&#39;{$k}&#39;";
$k="item";
}
$xml.="<{$k}{$attr}>";
$xml.=is_array($v)?self::xmlToEncode($v):$v;
$xml.="</{$k}>";
}
return $xml;
}
实现：
<?php
require_once(&#39;./apitest.php&#39;);
$arr=array(
&#39;id&#39;=>1,
&#39;name&#39;=>&#39;huwei&#39;,
&#39;type&#39;=>array(1,2,3)
);
//echo Response::json(200,&#39;数据返回成功&#39;,$arr);
echo Response::xml(200,&#39;数据返回成功&#39;,$arr);
综合通信方法封装
 
封装方法
const JSON="json";
/**
*按综合方式输出通信数据
*@param integer $code 状态码
*@param string $message 提示信息
*@param array $data 数据
*@param string $type 类型
*return string
*/
publicstaticfunction show($code,$message=&#39;&#39;,$data=array(),$type==self::JSON){
if(!is_numeric($code)){
return&#39;&#39;;
}
$result=array(
&#39;code&#39;=>$code,
&#39;message&#39;=>$message,
&#39;data&#39;=>$data,
);
if($type==&#39;json&#39;){
returnself::json($code,$message,$data);
}elseif($type==&#39;array&#39;){
var_dump($result);
}elseif($type==&#39;xml&#39;){
returnself::xml($code,$message,$data);
}else{
//TODO
}
}
调用方式：
<?php
require_once(&#39;./apitest.php&#39;);
$arr=array(
&#39;id&#39;=>1,
&#39;name&#39;=>&#39;huwei&#39;,
&#39;type&#39;=>array(1,2,3)
);
//echo Response::json(200,&#39;数据返回成功&#39;,$arr);
//echo Response::xml(200,&#39;数据返回成功&#39;,$arr);
echo Response::show(200,&#39;数据返回成功&#39;,$arr,&#39;array&#39;);

Caching technology:

1. Static cache

Static files saved on disk, using PHP The generated data is put into the static cache file

PHP operation cache (file.php)

Generate cache, obtain cache, delete cache

Encapsulation Class

<?php
classFile{
private $_dir;// 文件路径
const EXT=&#39;.txt&#39;;//文件后缀
publicfunction __construct(){
$this->_dir=dirname(__FILE__).&#39;\files\/&#39;;//获取该项目同级目录
}
publicfunction cacheData($key,$value=&#39;&#39;,$path=&#39;&#39;){
$filename=$this->_dir.$path.$key.self::EXT;
if($value!==&#39;&#39;){//将value值写入缓存
if(is_null($value)){
return@unlink($filename);
}
$dir=dirname($filename);
if(!is_dir($dir)){
mkdir($dir,0777);
}
return file_put_contents($filename,json_encode($value));//若成功返回字节数，不然为false
}
if(!is_file($filename)){
returnFalse;
}else{
return json_decode(file_get_contents($filename),true);
}
}
}
调用类
<?php
//require_once(&#39;./apitest.php&#39;);
require_once(&#39;./file.php&#39;);
$arr=array(
&#39;id&#39;=>1,
&#39;name&#39;=>&#39;huwei&#39;,
&#39;type&#39;=>array(1,2,3)
);
//echo Response::json(200,&#39;数据返回成功&#39;,$arr);
//echo Response::xml(200,&#39;数据返回成功&#39;,$arr);
//echo Response::show(200,&#39;数据返回成功&#39;,$arr,&#39;array&#39;);
$file=newFile();
//echo $file->cacheData(&#39;index_cache&#39;,$arr); //写入操作
//var_dump($file->cacheData(&#39;index_cache&#39;)); //读取操作
echo $file->cacheData(&#39;index_cache&#39;,null);//删除操作
 
2.Memcache，redis

Set cache operation

Get cache operation

Delete cache operation

1.Memcache and Redis are both used to manage data

2. Their data is stored in memory

3. Redis can regularly back up data to disk (persistence)

4. Memchache is just a simple key/value cache

5.Redis not only supports simple k/v type data, but also provides storage of data structures such as list, set, hash, etc.

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