request.php: submit an array with a html form

[domsie]

If the HTML-Form POST value is an array if got an:

PHP Notice: Array to string conversion in /srv/www/htdocs/vendor/src/Http/Request.php on line 258

It´s within the following part of request.php:

// can be $_POST and $_FILES
public static function buildPostBody($fields, $files, $boundary = null)
{
...
foreach($fields as $name => $value){
    $body .= sprintf($part_field, $boundary, $name, $value);
    $body .= "{$value}\r\n";
}

One example could be:

<form action="" method="POST">
    <input type="text" name="first_name">
    <input type="text" name="last_name">
    <input type="submit">
</form>

// Result of $_POST (PHP):
// array(
//     'first_name' => ''
//     'last_name' => ''
// )

[domsie]

In my view it could be solved with following part

        foreach ($fields as $name => $value)
        {
            if ( is_array($value) )
            {
                foreach ( $value as $key => $val )
                {
                    $body .= sprintf($part_field, $boundary, $key, $val);
                    $body .= "{$val}\r\n";
                }
            }
            else
            {
                $body .= sprintf($part_field, $boundary, $name, $value);
                $body .= "{$value}\r\n";
            }
        }