What are some common reasons why a cURL command executed through a PHP script may not work as expected, and how can these issues be troubleshooted?

Common reasons why a cURL command executed through a PHP script may not work as expected include incorrect URL formatting, missing required headers or parameters, network connectivity issues, or server-side restrictions. To troubleshoot these issues, ensure that the URL is correctly formatted, check for any missing headers or parameters, verify network connectivity, and confirm that the server allows cURL requests. 

// Example PHP code snippet to troubleshoot cURL command issues
$url = "https://example.com/api";
$headers = array(
    "Content-Type: application/json",
    "Authorization: Bearer YOUR_ACCESS_TOKEN"
);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$response = curl_exec($ch);

if($response === false){
    echo "cURL error: " . curl_error($ch);
}

curl_close($ch);

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