How to retrieve the HTTP response status code from a cURL request in PHP?

You can use the curl_getinfo() function in PHP to retrieve the HTTP response status code from a cURL request. Here is an example:

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://example.com");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($ch);

$status_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);

curl_close($ch);

echo "HTTP Response Status Code: " . $status_code;

In this example, we set the CURLOPT_RETURNTRANSFER option to true to store the response in the $response variable. Then, we use the curl_getinfo() function with the $ch cURL handle and the CURLINFO_HTTP_CODE constant to retrieve the HTTP response status code. Finally, we close the cURL session and echo the status code.