How can the error "Failed sending HTTP Request" or response code 0 be effectively troubleshooted when using cUrl in PHP for API requests with OAuth 1.0 Authorization?

The error "Failed sending HTTP Request" or response code 0 in cUrl when making API requests with OAuth 1.0 Authorization can be caused by various issues such as network problems, incorrect URL, or missing OAuth credentials. To troubleshoot this issue, check the URL, ensure the OAuth credentials are correctly set, and verify the network connection. 

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

// Set cUrl options
curl_setopt($ch, CURLOPT_URL, 'YOUR_API_ENDPOINT');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Authorization: OAuth YOUR_OAUTH_TOKEN'
));

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

// Check for errors
if($response === false){
    echo 'cUrl error: ' . curl_error($ch);
}

// Close cUrl session
curl_close($ch);

Keywords

cUrl PHP API requests OAuth 1.0 Authorization HTTP Request

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