How can PHP functions like curl_init() be debugged when encountering unknown errors?

When encountering unknown errors with PHP functions like curl_init(), one approach to debugging is to enable error reporting and display error messages. This can provide more insight into what might be causing the issue. Additionally, checking the return values of function calls and inspecting the input parameters can help identify potential problems. 

// Enable error reporting
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Check the return value of curl_init()
$ch = curl_init();
if (!$ch) {
    die('Failed to initialize cURL');
}

// Inspect input parameters
$url = 'https://example.com';
curl_setopt($ch, CURLOPT_URL, $url);

Keywords

PHP curl_init() debugging errors troubleshooting

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