PHP Classe

[programator]

Salve, sto facendo una chat usando una classe chiamata Pusher.

il file che adopero si chiama pusher.php ed ecco il codice:

<?php

/* 
        Pusher PHP Library
    /////////////////////////////////
    This was a very simple PHP library to the Pusher API.

        $pusher = new Pusher(APIKEY, SECRET, APP_ID, CHANNEL, [Debug: true/false, HOST, PORT]);
        $pusher->trigger('my_event', 'test_channel', [socket_id, Debug: true/false]);
        $pusher->socket_auth('socket_id');

    Copyright 2011, Squeeks. Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php

    Contributors:
        + Paul44 (http://github.com/Paul44)
        + Ben Pickles (http://github.com/benpickles)
        + Mastercoding (http://www.mastercoding.nl)
        + Alias14 (mali0037@gmail.com)
        + Max Williams (max@pusher.com)
        + Zack Kitzmiller (delicious@zackisamazing.com)
        + Andrew Bender (igothelp@gmail.com)
*/

class PusherInstance {

    private static $instance = null;
    private static $app_id  = '';
    private static $secret  = '';
    private static $api_key = '';

    private function __construct() { }
    private function __clone() { }

    public static function get_pusher()
    {
        if (self::$instance !== null) return self::$instance;

        self::$instance = new Pusher(
            self::$api_key, 
            self::$secret, 
            self::$app_id
        );

        return self::$instance;
    }
}

class Pusher
{

    private $settings = array ();

    /**
    * PHP5 Constructor. 
    * 
    * Initializes a new Pusher instance with key, secret , app ID and channel. 
    * You can optionally turn on debugging for all requests by setting debug to true.
    * 
    * @param string $auth_key
    * @param string $secret
    * @param int $app_id
    * @param bool $debug [optional]
    * @param string $host [optional]
    * @param int $port [optional]
    * @param int $timeout [optional]
    */
    public function __construct( $auth_key, $secret, $app_id, $debug = false, $host = 'http://api.pusherapp.com', $port = '80', $timeout = 30 )
    {

        // Check compatibility, disable for speed improvement
        $this->check_compatibility();

        // Setup defaults
        $this->settings['server']    = $host;
        $this->settings['port']        = $port;
        $this->settings['auth_key']    = $auth_key;
        $this->settings['secret']    = $secret;
        $this->settings['app_id']    = $app_id;
        $this->settings['url']        = '/apps/' . $this->settings['app_id'];
        $this->settings['debug']    = $debug;
        $this->settings['timeout']    = $timeout;

    }

    /**
    * Check if the current PHP setup is sufficient to run this class
    */
    private function check_compatibility()
    {

        // Check for dependent PHP extensions (JSON, cURL)
        if ( ! extension_loaded( 'curl' ) || ! extension_loaded( 'json' ) )
        {
            die( 'There is missing dependant extensions - please ensure both cURL and JSON modules are installed' );
        }

        # Supports SHA256?
        if ( ! in_array( 'sha256', hash_algos() ) )
        {
            die( 'SHA256 appears to be unsupported - make sure you have support for it, or upgrade your version of PHP.' );
        }

    }

    /**
    * Trigger an event by providing event name and payload. 
    * Optionally provide a socket ID to exclude a client (most likely the sender).
    * 
    * @param string $event
    * @param mixed $payload
    * @param int $socket_id [optional]
    * @param string $channel [optional]
    * @param bool $debug [optional]
    * @return bool|string
    */
    public function trigger( $channel, $event, $payload, $socket_id = null, $debug = false, $already_encoded = false )
    {

        # Check if we can initialize a cURL connection
        $ch = curl_init();
        if ( $ch === false )
        {
            die( 'Could not initialise cURL!' );
        }

        # Add channel to URL..
        $s_url = $this->settings['url'] . '/channels/' . $channel . '/events';

        # Build the request
        $signature = "POST\n" . $s_url . "\n";
        $payload_encoded = $already_encoded ? $payload : json_encode( $payload );
        $query = "auth_key=" . $this->settings['auth_key'] . "&auth_timestamp=" . time() . "&auth_version=1.0&body_md5=" . md5( $payload_encoded ) . "&name=" . $event;

        # Socket ID set?
        if ( $socket_id !== null )
        {
            $query .= "&socket_id=" . $socket_id;
        }

        # Create the signed signature...
        $auth_signature = hash_hmac( 'sha256', $signature . $query, $this->settings['secret'], false );
        $signed_query = $query . "&auth_signature=" . $auth_signature;
        $full_url = $this->settings['server'] . ':' . $this->settings['port'] . $s_url . '?' . $signed_query;

        # Set cURL opts and execute request
        curl_setopt( $ch, CURLOPT_URL, $full_url );
        curl_setopt( $ch, CURLOPT_HTTPHEADER, array ( "Content-Type: application/json" ) );
        curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 );
        curl_setopt( $ch, CURLOPT_POST, 1 );
        curl_setopt( $ch, CURLOPT_POSTFIELDS, $payload_encoded );
        curl_setopt( $ch, CURLOPT_TIMEOUT, $this->settings['timeout'] );

        $response = curl_exec( $ch );

        curl_close( $ch );

        if ( $response == "202 ACCEPTED\n" && $debug == false )
        {
            return true;
        }
        elseif ( $debug == true || $this->settings['debug'] == true )
        {
            return $response;
        }
        else
        {
            return false;
        }

    }

    /**
    * Creates a socket signature
    * 
    * @param int $socket_id
    * @param string $custom_data
    * @return string
    */
    public function socket_auth( $channel, $socket_id, $custom_data = false )
    {

        if($custom_data == true)
        {
            $signature = hash_hmac( 'sha256', $socket_id . ':' . $channel . ':' . $custom_data, $this->settings['secret'], false );
        }
        else
        {
            $signature = hash_hmac( 'sha256', $socket_id . ':' . $channel, $this->settings['secret'], false );
        }

        $signature = array ( 'auth' => $this->settings['auth_key'] . ':' . $signature );
        // add the custom data if it has been supplied
        if($custom_data){
          $signature['channel_data'] = $custom_data;
        }
        return json_encode( $signature );

    }

    /**
    * Creates a presence signature (an extension of socket signing)
    *
    * @param int $socket_id
    * @param string $user_id
    * @param mixed $user_info
    * @return string
    */
    public function presence_auth( $channel, $socket_id, $user_id, $user_info = false )
    {

        $user_data = array( 'user_id' => $user_id );
        if($user_info == true)
        {
            $user_data['user_info'] = $user_info;
        }

        return $this->socket_auth($channel, $socket_id, json_encode($user_data) );
    }


}

?>

Ora tutta l'applicazione testata in locale funziona e invia i messaggi a tutti, il problema è l'invio da altervista.
Il codice di errore che ricevo è:

Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /membri/programator/chat/pusher.php on line 26

La ricezione dei messaggi funziona, il problema è l'invio da altervista.

Di seguito posto il codice php usato per inviare:

<?php
require('pusher.php');
$thing = $_POST['msg'];
if($thing) {
  $pusher = new Pusher($key, $secret, $app_id);
  $pusher->trigger('test_channel', 'my_event',
                   $thing );
}
?>

volevo sapere quale sia il problema.

[programmazioned]

Controlla di aver attivato PHP 5. Puoi farlo da AlterSito > Gestione file, trovi l'apposita icona in alto.

Saluti!

[programator]

Controlla di aver attivato PHP 5. Puoi farlo da AlterSito > Gestione file, trovi l'apposita icona in alto.

Saluti!

Grazie