PHP Web Scraping: Get Web Content

To retrieve specific content from a webpage, you can use PHP’s cURL function to grab the webpage content, and then use regular expressions or other methods to extract the desired content. Here’s a simple example:

// 目标网页的 URL
$url = "https://www.example.com";

// 初始化 cURL
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

// 执行 cURL 请求
$response = curl_exec($ch);

// 关闭 cURL
curl_close($ch);

// 使用正则表达式获取指定内容
$pattern = '/<div class="content">(.*?)<\/div>/s';
preg_match($pattern, $response, $matches);

// 输出获取到的内容
echo $matches[1];

In the code above, first, the content of the target webpage is retrieved using cURL. Then a regular expression /