yii2 中 linslin\Curl的基本使用

 yii2 中 linslin\Curl的基本使用

一、get请求:

1.1 简单get请求

use linslin\yii2\curl;
$curl = new curl\Curl();

//get http://example.com/ get请求改网址
$response = $curl->get('http://example.com/');
// curl对象有errorCode和errorerrorText 属性,分别为错误代码和错误说明
if ($curl->errorCode === null) {
   echo $response;
} else {
     // 可以从这里获得所有的错误代码 https://curl.haxx.se/libcurl/c/libcurl-errors.html
    switch ($curl->errorCode) {

        case 6:
            //host unknown example
            break;
    }
} 

1.2、get 发起请求并且携带参数

GET request with GET params

// GET request with GET params
// get 发起请求并且携带参数
// 例如 http://example.com/?key=value&scondKey=secondValue
$curl = new curl\Curl();
$response = $curl->setGetParams([
        'key' => 'value',
        'secondKey' => 'secondValue'
     ])
     ->get('http://example.com/');

二、POST请求

2.1、post 请求 , 数据格式为 form-urlencoded格式

// POST URL form-urlencoded 
// post 请求 , 数据格式为 form-urlencoded格式
$curl = new curl\Curl();
$response = $curl->setPostParams([
        'key' => 'value',
        'secondKey' => 'secondValue'
     ])
     ->post('http://example.com/');

2.2、发起post请求,数据为json格式

POST RAW JSON

// POST RAW JSON
// 发起post请求,数据为json格式
$curl = new curl\Curl();
$response = $curl->setRawPostData(
     json_encode([
        'key' => 'value',
        'secondKey' => 'secondValue'
     ]))
     ->post('http://example.com/');

2.3、POST RAW XML发起post请求

数据为xml格式

// POST RAW XML
// 发起post请求,数据为xml格式
$curl = new curl\Curl();
$response = $curl->setRawPostData('<?xml version="1.0" encoding="UTF-8"?><someNode>Test</someNode>')
     ->post('http://example.com/');

2.4、设置header头部参数

// POST with special headers
// 发起post请求,并且设置header头部参数
$curl = new curl\Curl();
$response = $curl->setPostParams([
        'key' => 'value',
        'secondKey' => 'secondValue'
     ])
     ->setHeaders([
        'Custom-Header' => 'user-b'
     ])
     ->post('http://example.com/');

2.5、发起post请求,数据作为body以json串来传递,并且设置header头部参数

// POST JSON with body string & special headers
// 发起post请求,数据作为body以json串来传递,并且设置header头部参数
$curl = new curl\Curl();

$params = [
    'key' => 'value',
    'secondKey' => 'secondValue'
];

$response = $curl->setRequestBody(json_encode($params))
     ->setHeaders([
        'Content-Type' => 'application/json',
        'Content-Length' => strlen(json_encode($params))
     ])
     ->post('http://example.com/');

2.6、Avanced POST request with curl options & error handling

// Avanced POST request with curl options & error handling
post请求,设置参数
$curl = new curl\Curl();

$params = [
    'key' => 'value',
    'secondKey' => 'secondValue'
];

$response = $curl->setRequestBody(json_encode($params))
     ->setOption(CURLOPT_ENCODING, 'gzip')
     ->post('http://example.com/');
// List of status codes here http://en.wikipedia.org/wiki/List_of_HTTP_status_codes
switch ($curl->responseCode) {

    case 'timeout':
        //timeout error logic here
        break;

    case 200:
        //success logic here
        break;

    case 404:
        //404 Error logic here
        break;
}
//list response headers
var_dump($curl->responseHeaders);
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