WordPress 利用XML-RPC写远程日志，支持Custom Fields

采用metaWeblog.newPost而不是Weblog.newPost方法，支持添加Custom Fields字段

function post($result){
	include("xmlrpc.inc");
	$GLOBALS['xmlrpc_internalencoding'] = 'UTF-8';
	$c = new xmlrpc_client("xmlrpc.php","example.com", 80);
	$content['title']="title";
	$content['description']="content";
	$content['mt_keywords']="tag1,tag2";
	$content['wp_password']="";
	$content['categories'] = array("label");
	$content['custom_fields'] = array(
	array( 'key' => 'city', 'value' => 'Sacramento' )
	);
	$x = new xmlrpcmsg("metaWeblog.newPost",
	array(php_xmlrpc_encode("1"),
	php_xmlrpc_encode("admin"),
	php_xmlrpc_encode('123456'),
	php_xmlrpc_encode($content),
	php_xmlrpc_encode("1")));

	$c->return_type = 'phpvals';
	$r =$c->send($x);
	if ($r->errno=="0")
		echo "success，ID：".$r->val;
	else {
		echo "fail";;
		print_r($r);
	}
}