How Can I Retrieve Both the HTTP Response Headers and Body using PHP cURL?

Retrieving Response Headers and Body in PHP cURL

PHP's cURL library provides a powerful means of sending HTTP requests. However, when using curl_exec(), the default behavior is to return only the response body. To obtain both the headers and body in a single request, consider the following solution presented in the PHP documentation:

// Initialize cURL and set necessary options
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);  // Enable return of response
curl_setopt($ch, CURLOPT_HEADER, 1);       // Include headers in response

// Execute the request
$response = curl_exec($ch);

// Extract header and body information
$header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE);
$header = substr($response, 0, $header_size);
$body = substr($response, $header_size);

In this approach, curl_exec() returns a string containing both the headers and body. We then use curl_getinfo() to obtain the size of the headers and split the response accordingly.

While this solution is generally effective, it's important to note that it may not be reliable when using proxy servers or handling redirects. Therefore, it's advisable to explore other options, such as the approach suggested by @Geoffrey in the question's comments, to ensure reliable header and body retrieval in all scenarios.

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