详解如何使用PHP实现动态代理IP的功能

sudo apt-get install php-curl

php -m | grep curl

<?php
$api_token = 'YOUR_API_TOKEN';
$url = 'YOUR_URL';

<?php
$api_token = 'YOUR_API_TOKEN';
$url = 'YOUR_URL';
 
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api.proxycrawl.com/?token=' . $api_token . '&url=' . urlencode($url));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 
$response = curl_exec($ch);
curl_close($ch);
 
$json = json_decode($response, true);
 
if ($json['status'] == 'success') {
    $proxy_ip = $json['proxy_ip'];
    echo 'Proxy IP: ' . $proxy_ip;
} else {
    echo 'Failed to get proxy IP';
}

<?php
$api_token = 'YOUR_API_TOKEN';
$urls = ['URL1', 'URL2', 'URL3'];
 
function getProxyIP($api_token)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, 'https://api.proxycrawl.com/?token=' . $api_token . '&url=https://api.proxycrawl.com/status');
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 
    $response = curl_exec($ch);
    curl_close($ch);
 
    $json = json_decode($response, true);
 
    if ($json['status'] == 'success') {
        return $json['proxy_ip'];
    } else {
        return false;
    }
}
 
function sendRequest($url, $proxy_ip)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_PROXY, $proxy_ip);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 
    $response = curl_exec($ch);
    curl_close($ch);
 
    return $response;
}
 
$proxy_ip = getProxyIP($api_token);
 
foreach ($urls as $url) {
    $response = sendRequest($url, $proxy_ip);
 
    // 监控请求的响应，如果遇到请求失败或被封锁的情况，切换到下一个代理IP
    while (!$response || strpos($response, 'Blocked') !== false) {
        $proxy_ip = getProxyIP($api_token);
        $response = sendRequest($url, $proxy_ip);
    }
 
    echo 'Response: ' . $response;
}