{  "method": "",  "params": [],  "id": idNumber}

<?phpclass jsonRPCClient {    /**   * Debug state   *   * @var boolean   */  private $debug;    /**   * The server URL   *   * @var string   */  private $url;  /**   * The request id   *   * @var integer   */  private $id;  /**   * If true, notifications are performed instead of requests   *   * @var boolean   */  private $notification = false;    /**   * Takes the connection parameters   *   * @param string $url   * @param boolean $debug   */  public function __construct($url,$debug = false) {    // server URL    $this->url = $url;    // proxy    empty($proxy) ? $this->proxy = '' : $this->proxy = $proxy;    // debug state    empty($debug) ? $this->debug = false : $this->debug = true;    // message id    $this->id = 1;  }    /**   * Sets the notification state of the object. In this state, notifications are performed, instead of requests.   *   * @param boolean $notification   */  public function setRPCNotification($notification) {    empty($notification) ?              $this->notification = false              :              $this->notification = true;  }    /**   * Performs a jsonRCP request and gets the results as an array   *   * @param string $method   * @param array $params   * @return array   */  public function __call($method,$params) {        // check    if (!is_scalar($method)) {      throw new Exception('Method name has no scalar value');    }        // check    if (is_array($params)) {      // no keys      $params = $params[0];    } else {      throw new Exception('Params must be given as array');    }        // sets notification or request task    if ($this->notification) {      $currentId = NULL;    } else {      $currentId = $this->id;    }        // prepares the request    $request = array(            'method' => $method,            'params' => $params,            'id' => $currentId            );    $request = json_encode($request);    $this->debug && $this->debug.='***** Request *****'."/n".$request."/n".'***** End Of request *****'."/n/n";    // performs the HTTP POST    $opts = array ('http' => array (              'method' => 'POST',              'header' => 'Content-type: application/json',              'content' => $request              ));    $context = stream_context_create($opts);    if ($fp = fopen($this->url, 'r', false, $context)) {      $response = '';      while($row = fgets($fp)) {        $response.= trim($row)."/n";      }      $this->debug && $this->debug.='***** Server response *****'."/n".$response.'***** End of server response *****'."/n";      $response = json_decode($response,true);    } else {      throw new Exception('Unable to connect to '.$this->url);    }        // debug output    if ($this->debug) {      echo nl2br($debug);    }        // final checks and return    if (!$this->notification) {      // check      if ($response['id'] != $currentId) {        throw new Exception('Incorrect response id (request id: '.$currentId.', response id: '.$response['id'].')');      }      if (!is_null($response['error'])) {        throw new Exception('Request error: '. var_export($response['error'], true));      }            return $response['result'];          } else {      return true;    }  }}?>

{  "method": "eth_accounts",  "params": [],  "id": 1}

function balanceOf(address _owner) public view returns (uint256 balance)

balanceOf(address)

web3.sha3("balanceOf(address)").substring(0, 10)

{  "method": "eth_call",  "params": [{"from": "0x38aabef4cd283ccd5091298dedc88d27c5ec5750", "to": "0xaeab4084194B2a425096fb583Fbcd67385210ac3", "data": "0x70a0823100000000000000000000000038aabef4cd283ccd5091298dedc88d27c5ec5750"}, "latest"],  "id": 1}

function transfer(address _to, uint256 _value) public returns (bool)

transfer(address,uint256) //注意逗號后面不能有空格

web3.sha3("transfer(address,uint256)").substring(0, 10)

{  "method": "eth_call",  "params": [{"from": "0x38aabef4cd283ccd5091298dedc88d27c5ec5750", "to": "0xaeab4084194B2a425096fb583Fbcd67385210ac3", "data": "0xa9059cbb00000000000000000000000038aabef4cd283ccd5091298dedc88d27c5ec5750000000000000000000000000000000000000000000000000000000000000ab00"}, "latest"],  "id": 1}

<?php require './jsonRPCClient.php';//php自帶的dechex無法把大整型轉換為十六進制function bc_dechex($decimal){  $result = [];  while ($decimal != 0) {    $mod = $decimal % 16;    $decimal = floor($decimal / 16);    array_push($result, dechex($mod));      }  return join(array_reverse($result));}class EthereumRPCClient{  public static $client = null;    //布署合約的賬戶地址  const COINBASE = '0x38aabef4cd283ccd5091298dedc88d27c5ec5750';    //合約地址  const CONTRACT = '0xaeab4084194B2a425096fb583Fbcd67385210ac3';  public static function __callStatic($method, $params)  {    $params = count($params) < 1 ? [] : $params[0];    try {      if (is_null(self::$client)) {        self::$client = new jsonRPCClient('http://127.0.0.1:8545', true);        }    } catch (/Exception $e) {      echo $e->getMessage();    }    return call_user_func([self::$client, $method], $params);  }  public static function getBalance($address)  {    $method_hash = '0x70a08231';    $method_param1_hex = str_pad(substr($address, 2), 64, '0', STR_PAD_LEFT);    $data = $method_hash . $method_param1_hex;    $params = ['from' => $address, 'to' => self::CONTRACT, 'data' => $data];    $total_balance = self::eth_call([$params, "latest"]);    return hexdec($total_balance) / (pow(10, 18));  }  public static function transfer($to, $value)  {    self::personal_unlockAccount([self::COINBASE, "123456", 3600]);    $value = bcpow(10, 18) * $value;    $method_hash = '0xa9059cbb';    $method_param1_hex =str_pad(substr($to, 2), 64, '0', STR_PAD_LEFT);      $method_param2_hex = str_pad(strval(bc_dechex($value)), 64, '0', STR_PAD_LEFT);    $data = $method_hash . $method_param1_hex . $method_param2_hex;    $params = ['from' => self::COINBASE, 'to' => self::CONTRACT, 'data' => $data];    return self::eth_sendTransaction([$params]);  }}

<?php var_dump(EthereumRPCClient::personal_newAccount(['password']));var_dump(EthereumRPCClient::personal_unlockAccount([EthereumRPCClient::COINBASE, "password", 3600]);var_dump(EthereumRPCClient::getBalance("0x...."));