How to Properly Format Arrays in cURL POST Requests?

Using Arrays in cURL POST Requests

To facilitate the posting of arrays via cURL POST requests, it is crucial to ensure the proper formatting of the array within the $fields variable. The issue in the provided code lies in the incorrect construction of the images array.

Solution:

The recommended approach is to utilize the http_build_query function, which automatically generates a string with the appropriate array syntax. This function requires the array to be structured as follows:

<code class="php">$fields = array(
            'username' => "annonymous",
            'api_key' => urlencode("1234"),
            'images' => array(
                 urlencode(base64_encode('image1')),
                 urlencode(base64_encode('image2'))
            )
        );

//url-ify the data using http_build_query
$fields_string = http_build_query($fields);</code>

By reformatting the array in this manner and employing http_build_query, the cURL request will correctly transmit the images array as an array of strings to the API.

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