本文实例讲述了PHP的HTTP客户端Guzzle简单使用方法。分享给大家供大家参考，具体如下：

首先来一段官方文档对Guzzle的介绍：

然后cd到网站根目录，执行Composer命令下载Guzzle：（Linux环境）

composer require guzzlehttp/guzzle

下载完成后会生成一个vender文件夹：

在vender同级目录新建了一个guzzle.php来写例子。

【GET请求】

  require './vendor/autoload.php';
 
  //实例化客户端
  $client = new GuzzleHttp\Client();
 
  //构造url
  $url = 'https://www.yzsite.cn';
 
  //get请求
  $res = $client->request('GET', $url);
 
  //返回状态码
  echo $res->getStatusCode();
 
  //连贯操作
  //$res = $client->request('GET', $url)->getBody()->getContents();

【POST请求】

  require './vendor/autoload.php';
 
  //实例化客户端
  $client = new GuzzleHttp\Client(); 
 
  //构造url
  $url = 'https://www.yzsite.cn';
 
  //post请求
  $res = $client->request('POST', $url, [
    'form_params' =  [
      'name'= 'lws',
      'sex'= 'nan'
    ]
  ]);
 
  //返回状态码
  echo $res->getStatusCode();
  //连贯操作
  //$res->getBody()->getContents();

【POST文件上传】

  require './vendor/autoload.php';
 
  //实例化客户端
  $client = new GuzzleHttp\Client(); 
 
  //构造url
  $url = 'https://www.yzsite.cn';
 
  //post请求
  $res = $client->request('POST', $url, [
    'multipart' =  [
      [
     'name'= 'name',
        'contents'= 'lws'
      ],
      [
     'name'= 'sex',
        'contents'= 'nan'
      ],
      [
     'name'= 'tupian',
        'contents'= file_get_contents('1.jpg'),
        'filename'= 'lws.jpg'
      ]
    ]
  ]);
 
  //返回状态码
  echo $res->getStatusCode();

【设置代理IP】

  require './vendor/autoload.php';
 
  //实例化客户端
  $client = new GuzzleHttp\Client(); 
 
  //构造url
  $url = 'https://www.yzsite.cn';
 
  //设置代理请求
  $res = $client->request('GET', $url, [
    'proxy' =  '111.22.33.44:6666'
  ]);
 
  //返回状态码
  echo $res->getStatusCode();

【模拟请求头】

  require './vendor/autoload.php';
 
  //实例化客户端
  $client = new GuzzleHttp\Client(); 
 
  //构造url
  $url = 'https://www.yzsite.cn';
 

$header = [
    'Content-Type' => 'application/json',
    'appKey'=> $app_key,
    'timestamp' => $timestamp,
    'sign' => $sign
];


$data = [
    'orderNo' => $ccic_order['third_order_no'],
    'voucherNo' => $ccic_order['voucher_no'],
    'userNo' => $ccic_order['ecif_id'],
    'productCode' => $ccic_order['service_id'],
    'orderType' => 1,
    'orderStatus' => 3, // 0:未使用，自费券购买后默认状态 1:使用中 2:使用完成 3:取消
    'ownExpense' => 1,
    'callbackType' => 2,
];
-----------------------------------
guzzle json 请求
$response = $guzzle->post($url, [
　　　　'headers' => $header,
　　　　'json' => $data
]);

$res = json_decode($response->getBody()->getContents(),true);

【记录Cookie】

  require './vendor/autoload.php';
 
  //实例化客户端
  $client = new GuzzleHttp\Client(['cookie'= true]); 
 
  //构造url
  $url = 'https://www.yzsite.cn/]/';
 
  //设置代理请求
  $res = $client->request('GET', $url);
 
  //返回状态码
  echo $res->getStatusCode();

【xml】

$client = new \GuzzleHttp\Client();
// 请求xml数据
$xmlRequest = '<?xml version="1.0" encoding="utf-8"?>
	<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
	<soap:Body>
	<getChineseFonts xmlns="http://xxx.cn/">
	<byFontsLength&lg12</byFontsLength>
	</getChineseFonts>
	</soap:Body>
	</soap:Envelope>';
try {
    $response = $client->post(
        'http://www.xxx.cn/WebServices/RandomFontsWebService.asmx',
        [
            'body'    => $xmlRequest,
            'headers' => [
                'Content-Type' => 'text/xml',
            ]
        ]
    );

    if ($response->getStatusCode() === 200) {
        $xmlObj = simplexml_load_string($response->getBody()->getContents());

        $xmlObj->registerXPathNamespace('soap', 'http://schemas.xmlsoap.org/soap/envelope/');
        $xmlResult = $xmlObj->xpath("soap:Body");

        $result = (array)$xmlResult[0]->getChineseFontsResponse->getChineseFontsResult;
        var_dump($result);

    } else {
        echo 'Response Failure !!!';
    }

} catch (\Throwable $e) {
    echo $e->getMessage();
}

//返回数据参考

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <soap:Body>
        <getChineseFontsResponse xmlns="http://xxx.cn/">
            <getChineseFontsResult>
                <string>职</string>
            </getChineseFontsResult>
        </getChineseFontsResponse>
    </soap:Body>
</soap:Envelope>