Proxy IP combined with PHP cURL crawling: PHP cURL integration with Proxy IP

Teach you to use PHP cURL to hang proxy IP handily

Do data capture of the old iron must have encountered the IP was blocked bad thing, this time the proxy IP is your life-saving straw. We do not whole false today, directly on the dry goods to teach you how to use PHP cURL with proxy IP, guaranteed to see the end of the practical operation.

Why do you have to use a proxy IP?

For example, if you go to the market every day to buy food and the vendor sees that you come every day and starts to increase the price (IP blocked). At this time, change a vest (proxy IP) and go back to buy, the price is immediately normal. Proxy IP can help you:
1. Avoiding targeted websitesRecognizing Real IPs
2. BreakthroughsAccess frequency limitation
3. Addressing certain areasNetwork shielding issues

PHP cURL Basic Settings

First of all, the whole understand how to use cURL to send requests, this is the basic skills. Look at this code:

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://目标网站.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch).

It's like running around naked without a vest and getting caught by the target site in minutes. Next, let's put a proxy IP on the cloak of invisibility.

Proxy IP Access 3-Pack

Here's the point! These three parameters must be set in place:

// Take ipipgo's HTTP proxy for example
curl_setopt($ch, CURLOPT_PROXY, '123.45.67.89:8080'); // proxy address + port
curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'username:password'); // authentication information
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_HTTP); // proxy type

Note that there is a pitfall here: different proxy types have to be changedCURLPROXY_TypeFor example, a SOCKS5 proxy would have to use theCURLPROXY_SOCKS5ipipgo's proxy supports multiple protocols, remember to check the protocol type in the background.

Practical case: capture the price of goods

Let's say we want to grab data from an e-commerce platform, the full code looks like this:

function fetchData($proxy){
    $ch = curl_init();
    curl_setopt_array($ch, [
        CURLOPT_URL => 'https://目标电商.com/api/prices',
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT => 30,
        CURLOPT_PROXY => $proxy,
        CURLOPT_PROXYUSERPWD => 'ipipgo_user:your_password',
        CURLOPT_HTTPHEADER => [
            'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64)'
        ]
    ]);
    $result = curl_exec($ch);
    if(curl_errno($ch)){
        echo 'Crawl failed: '.curl_error($ch); }
    }
    curl_close($ch); }
    return json_decode($result, true); }
}

// Rotate through multiple proxy IPs provided by ipipgo
$proxies = ['111.222.333.4:8080', '112.113.114.5:3128', '123.123.123.6:8888']; }
foreach($proxies as $proxy){
    $data = fetchData($proxy);
    if($data) break;
}

Frequently Asked Questions QA

Q: What should I do if my proxy IP always times out?
A: First check the proxy address and port, then use telnet to measure the connectivity. If you use ipipgo's proxy, they have real-time availability monitoring in the background, so you should prioritize your choice.Availability >95%of the node.

Q: What should I do if the crawling speed suddenly slows down?
A: It may be that the current proxy IP is speed limited. It is recommended to turn on ipipgo'sIntelligent switching mode, the system will automatically switch to the fastest node.

Q: Do I need to deal with CAPTCHA if the proxy IP doesn't work?
A: Not necessarily, but high stash proxies reduce the probability of triggering a CAPTCHA. ipipgo'sDynamic Residential AgentsThe program is top notch in this regard and has been personally tested to be effective.

The fine points of choosing a proxy service provider

There are a variety of agency service providers on the market, so focus on these indicators:

Special reminder: don't try to be cheap with free proxies, or data leakage, or blocked by the anti-climbing mechanism. ipipgo provideFree Trial Package for New Users, enough to test the proxy effect.

Lastly, I would like to say a few words: Proxy IP is not a cure-all, it must be used together with random UA and request interval techniques. Encounter technical problems can be directly knocked ipipgo technical customer service, their 7 × 24 hour response is really reliable, much stronger than those robot customer service.