JSON-RPC server in PHP

README.md

== JSON-RPC ==

This is designed to have to autoload calls and return a json object. It supports PHP 5.3's namespaces, and relies on PHP's built in Reflection.

Example: htttp://localhost/rpc.php?0={"method":"foo\myclass::hello","params":[], "id":2}

Returns: {"result":"Hello World","error":null,"id":2}

Based off: filename: "foo/myclass.php" source: {{{

}}}

rpc.php

<?php
function __autoload($class_name) {
    include $class_name . '.php';
}

//-- Run the front controller
$obj = json_decode(current($_REQUEST));
if ($obj) {
    $params = (array) $obj->params;
    $method = $obj->method;
    $parts = explode('::', $method);
    $class_name = $parts[0];
    $method_name = $parts[1];

    if (file_exists($class_name . '.php')) {
        $ref = new ReflectionClass($class_name);
        if ($ref->hasMethod($method_name)) {
            $fn = $ref->getMethod($method_name);
            //-- Make sure this function is registered as an endpoint
            $is_endpoint = stristr($fn->getDocComment(), '@endpoint') !== false;
            if ($is_endpoint) {
                $result = $fn->invokeArgs(null, $params);
            } else {
                $result = null;
                $error = 'Method "' . $method_name . '" is not a registered endpoint.';
            }
        } else {
            $result = null;
            $error = 'Method "' . $method_name . '" not found';
        }
    } else {
        $result = null;
        $error = 'Class "' . $class_name . '" not found';
    }

    echo json_encode(array(
        'result' => $result,
        'error' => $error,
        'id' => (int) $obj->id
    ));
} else {
    echo json_encode(array(
        'result' => null,
        'error' => 'Unable parse JSON correctly',
        'id' => (int) $obj->id
    ));
}
?>