What is the best method to extract content from an external website using PHP?

When extracting content from an external website using PHP, the best method is to use the cURL library. cURL allows you to make HTTP requests to the external website and retrieve the content. You can then parse the HTML content using DOMDocument or other HTML parsing libraries to extract the specific data you need. 

$url = 'https://www.example.com';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);

$dom = new DOMDocument();
@$dom->loadHTML($response);

// Extract specific content from the DOM here

Keywords

web scraping PHP cURL DOMDocument file_get_contents regular expressions

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