What PHP functions or methods are commonly used to imitate form submissions on websites?

To imitate form submissions on websites using PHP, you can use the cURL library to send HTTP requests to the server as if they were coming from a form submission. The cURL library allows you to set various options such as the URL, request method, headers, and data to be sent with the request. This can be useful for automating tasks, testing APIs, or scraping websites. 

// Initialize cURL session
$ch = curl_init();

// Set cURL options
curl_setopt($ch, CURLOPT_URL, 'https://www.example.com/form-submit.php');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(['param1' => 'value1', 'param2' => 'value2']));

// Execute cURL session
$response = curl_exec($ch);

// Close cURL session
curl_close($ch);

// Output the response
echo $response;

Keywords

cURL file_get_contents fopen stream_context_create HTTP headers

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