WordPress XMLRPC wp.newPost

<?php

define( 'XMLRPC_URL', 'http://mydomain.com/xmlrpc.php' );

function send( $data )
{
    if( !function_exists( 'curl_init' ) )
    {
        die( "Curl PHP package not installed!" );
    }

    /** Initializing CURL **/
    $ch = curl_init();
    curl_setopt( $ch, CURLOPT_URL, XMLRPC_URL );
    curl_setopt( $ch, CURLOPT_HEADER, false );
    curl_setopt( $ch, CURLOPT_HTTPHEADER, array("Content-Type: text/xml") );
    curl_setopt( $ch, CURLOPT_POSTFIELDS, $data );

    /** Now execute the CURL, download the URL specified **/
    $response = curl_exec( $ch );
    return $response;
}

$xmlrpc_username = 'username'; // User setup with contributor role
$xmlrpc_password = 'password'; // The users password

$content = array(
    'post_title'   => 'test title',
    'post_content' => 'test content',
    'post_excerpt' => 'test excerpt',
    'post_status' => 'pending'
);

/** Encode the request **/
$request = xmlrpc_encode_request( "wp.newPost", array( 1, $xmlrpc_username, $xmlrpc_password, $content) );

/** Making the request to wordpress XMLRPC **/
$xml_response = send( $request );

$response = xmlrpc_decode( $xml_response );

/** Printing the response on to the console **/
print_r( $response );

?>