首先来一段官方文档对Guzzle的介绍:

PHP的HTTP客户端:Guzzle的简单使用_php

 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:

PHP的HTTP客户端:Guzzle的简单使用_php_02

在vender同级目录新建了一个guzzle.php来写例子。

【GET请求】

<?php 
    require './vendor/autoload.php';
 
    //实例化客户端
    $client = new GuzzleHttp\Client();
 
    //构造url
    $url = 'https://www.baidu.com';
 
    //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】

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

【POST文件上传】

<?php 
    require './vendor/autoload.php';
 
    //实例化客户端
    $client = new GuzzleHttp\Client(); 
 
    //构造url
    $url = 'https://www.baidu.com';
 
    //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】

<?php 
    require './vendor/autoload.php';
 
    //实例化客户端
    $client = new GuzzleHttp\Client(); 
 
    //构造url
    $url = 'https://www.baidu.com';
 
    //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】

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

【记录Cookie】

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