如何将指定CURL请求转为PHP代码？含认证与参数处理疑问

Hey Mike, let's break down how to convert that curl command into working PHP code, addressing both the authentication and JSON payload parts you're unsure about:

1. HTTP Basic Authentication in PHP cURL #

The -u "<brugernavn>:<password>" in your curl command uses HTTP Basic Authentication. In PHP's cURL extension, you don't need to manually encode the credentials—you can use the CURLOPT_USERPWD option to pass the username:password string directly, and cURL will handle the base64 encoding for you automatically.

2. Sending the JSON Request Body #

Your curl command sends a JSON payload with -d '{"from":0,...}'. To replicate this in PHP:

• First, define your query as a PHP array (way easier to maintain than raw JSON strings)
• Convert it to a valid JSON string with json_encode()
• Set the Content-Type header to application/json so the API knows to parse the payload as JSON
• Pass the JSON string to CURLOPT_POSTFIELDS (important: don't pass an array here, as that would send form-data instead of raw JSON)

Complete requestApiV2 Method Example #

function requestApiV2($cvrNumber, $username, $password) {
    // API endpoint URL
    $url = 'http://distribution.virk.dk/cvr-permanent/_search';
    
    // Initialize cURL session
    $ch = curl_init($url);
    
    // Set up the query as a PHP array
    $query = [
        'from' => 0,
        'size' => 1,
        'query' => [
            'term' => [
                'cvrNummer' => $cvrNumber
            ]
        ]
    ];
    
    // Convert array to JSON string
    $jsonPayload = json_encode($query);
    
    // Configure cURL options
    curl_setopt_array($ch, [
        // Enable POST request
        CURLOPT_POST => true,
        // Attach the JSON payload
        CURLOPT_POSTFIELDS => $jsonPayload,
        // Return response as string instead of outputting it
        CURLOPT_RETURNTRANSFER => true,
        // Set Basic Auth credentials
        CURLOPT_USERPWD => "$username:$password",
        // Set required request headers
        CURLOPT_HTTPHEADER => [
            'Content-Type: application/json',
            'Content-Length: ' . strlen($jsonPayload) // Optional but helpful for some APIs
        ],
        // Disable SSL verification only for HTTP endpoints (remove this if using HTTPS!)
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_SSL_VERIFYHOST => false
    ]);
    
    // Execute the request
    $response = curl_exec($ch);
    
    // Handle cURL errors
    if(curl_errno($ch)) {
        $errorMsg = curl_error($ch);
        curl_close($ch);
        throw new Exception("cURL Error: $errorMsg");
    }
    
    // Get HTTP status code for debugging
    $httpStatusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    
    // Clean up the cURL session
    curl_close($ch);
    
    // Convert JSON response back to PHP array
    $result = json_decode($response, true);
    
    return [
        'status_code' => $httpStatusCode,
        'data' => $result
    ];
}

Quick Testing Tips (Even Without Credentials) #

If you don't have the username/password yet, you can:

• Temporarily comment out the CURLOPT_USERPWD line and add CURLOPT_VERBOSE => true to see full request details (headers, payload) in your error log
• Compare the PHP-generated request with your original curl command using verbose mode (curl -v ...) to ensure they match

内容的提问来源于stack exchange，提问作者Mike Nor