How do I handle JSON responses?

Use json_decode($response, true) for array, json_decode($response) for object. Check json_last_error() for parse errors. Set Accept: application/json header.

What about authentication?

Basic auth: CURLOPT_USERPWD = "user:pass". Bearer token: header "Authorization: Bearer token". OAuth needs additional libraries.

How do I handle SSL errors?

CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST should be true in production. Only disable for testing. Ensure CA certificates are installed.

cURL to PHP Converter

Guide & TutorialOffline

Convert cURL commands to PHP code using cURL or Guzzle

Output Format:

cURL Command

Supported cURL Options:

-X, --request - HTTP method
-H, --header - Custom headers
-d, --data - POST data
--data-raw - Raw POST data

About cURL to PHP Converter

cURL to PHP converter transforms cURL commands into equivalent PHP code using the cURL extension or Guzzle HTTP client. Essential for developers integrating APIs, converting tested cURL commands into production PHP code.

How It Works

Parse cURL command to extract: method, URL, headers, data, auth, cookies, and options. Map each to PHP cURL functions (curl_setopt) or Guzzle configuration. Generate properly formatted PHP code with error handling.

Technical Details

PHP cURL extension wraps libcurl. Key functions: curl_init(), curl_setopt(), curl_exec(), curl_close(). Options: CURLOPT_URL, CURLOPT_POST, CURLOPT_HTTPHEADER, CURLOPT_POSTFIELDS. Guzzle provides higher-level abstraction with PSR-7 support.

Common Use Cases

API Integration

Convert tested API calls to PHP code.

curl -X POST with JSON → PHP

Migration

Move shell scripts to PHP applications.

Learning

Understand PHP cURL from familiar curl syntax.

Documentation

Generate PHP examples from curl commands.

Code Examples

cURL Command to PHP

php

// Original: curl -X POST https://api.example.com/users \
//   -H "Content-Type: application/json" \
//   -H "Authorization: Bearer token123" \
//   -d '{"name":"John","email":"john@example.com"}'

// PHP cURL equivalent
$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL => 'https://api.example.com/users',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => json_encode([
        'name' => 'John',
        'email' => 'john@example.com'
    ]),
    CURLOPT_HTTPHEADER => [
        'Content-Type: application/json',
        'Authorization: Bearer token123'
    ],
]);

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

if (curl_errno($ch)) {
    throw new Exception('cURL Error: ' . curl_error($ch));
}

curl_close($ch);

$data = json_decode($response, true);

// Guzzle equivalent
use GuzzleHttp\Client;

$client = new Client();
$response = $client->post('https://api.example.com/users', [
    'headers' => [
        'Authorization' => 'Bearer token123'
    ],
    'json' => [
        'name' => 'John',
        'email' => 'john@example.com'
    ]
]);

$data = json_decode($response->getBody(), true);

Both cURL extension and Guzzle approaches. Guzzle handles JSON encoding automatically with json option.

Tips & Best Practices

Always set CURLOPT_RETURNTRANSFER for response capture
Check curl_errno() for connection errors
Use json_encode/decode for JSON APIs
Keep SSL verification enabled in production
Consider Guzzle for complex applications

Common Mistakes to Avoid

Forgetting CURLOPT_RETURNTRANSFER
Not closing curl handle (curl_close)
Disabling SSL verification in production
Not checking for cURL errors
Wrong content type for data format

When to Use This Tool

Use cURL to PHP converter when integrating APIs in PHP, converting tested curl commands to code, or learning PHP HTTP requests.

Frequently Asked Questions

cURL is built-in, zero dependencies. Guzzle is modern, PSR-7 compliant, better for complex apps. For simple requests, cURL. For production apps with many API calls, Guzzle.

// Original: curl -X POST https://api.example.com/users \ // -H "Content-Type: application/json" \ // -H "Authorization: Bearer token123" \ // -d '{"name":"John","email":"john@example.com"}' // PHP cURL equivalent $ch = curl_init(); curl_setopt_array($ch, [ CURLOPT_URL => 'https://api.example.com/users', CURLOPT_RETURNTRANSFER => true, CURLOPT_POST => true, CURLOPT_POSTFIELDS => json_encode([ 'name' => 'John', 'email' => 'john@example.com' ]), CURLOPT_HTTPHEADER => [ 'Content-Type: application/json', 'Authorization: Bearer token123' ], ]); $response = curl_exec($ch); $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE); if (curl_errno($ch)) { throw new Exception('cURL Error: ' . curl_error($ch)); } curl_close($ch); $data = json_decode($response, true); // Guzzle equivalent use GuzzleHttp\Client; $client = new Client(); $response = $client->post('https://api.example.com/users', [ 'headers' => [ 'Authorization' => 'Bearer token123' ], 'json' => [ 'name' => 'John', 'email' => 'john@example.com' ] ]); $data = json_decode($response->getBody(), true);