PHP的Erlang扩展安装

Question

由于php的网络通信能力十分棘手，故选择一个强悍的帮手
erlang则是目前这方面的扩展首选，其并发性能、分布式、可维护性、扩展性都是出类拔萃的。

下载地址：http://www.math-hat.com/~zukerma ... rlang-0.0.3.tar.bz2

  $ phpize
  $ ./configure --enable-erlang
  $ make&&make install

可能出现的问题解决：
1、yum install php5-devel(若无)
2、cp erl_interface-3.x.x/include/ei.h 到当前编译目录
3、cp erl_interface-3.x.x/lib/libei.a /usr/local/lib

成功后将modules目录下的erlang.so复制到 php的扩展库目录下，配置php.ini：

extension=erlang.so

erlang.node=node@localhost.localdomain
erlang.cookie=secret

*如何设置node和cookie?
#erl -setcookie secret -name node

*查看node
>node().

*查看cookie
>erlang:get_cookie().

Answer 1

版主推荐的东西要尝试一下

Answer 2

过些日子谈谈用php+erlang开发强悍的高性能、高可靠、可伸缩、高负载网游的框架  

Answer 3

最近几个月一直在win下搞，linux的下有点看不懂了，MARK下

Answer 4

扩展的稳定性尚不知，不过作者相当强了

erlang的扩展本身就比较简单，搞清ei，大不了自己改扩展源码。

erlang是电信级的开发语言，达到9个9的可靠性，基本无敌，otp下非常好用

Answer 5

稳定性好吗

Answer 6

这是官方的帮助信息

http://www.math-hat.com/~zukerman/projects/php-erlang/README

PHP/Erlang 0.0.3

Sat, 02 Feb 2008

Copyright 2008 Itai Zukerman <zukerman@math-hat.com>

INTRODUCTION

PHP/Erlang aims to be a PHP extension with a simple set of functions
for turning a PHP thread into an Erlang C-node.  With this extension,
you can shift backend tasks to Erlang, where they belong:  caching,
chat, database proxying, everything.

PHP/Erlang is released under the LPGL.  See COPYING and COPYING.LESSER
for details.

INSTALLATION

Requirements.

You must have both the PHP and Erlang development headers and
the Erlang ei (and possibly erl_interface) libraries.  In Debian
systems these are provided by php5-dev and erlang-dev.

Building.

  $ phpize
  $ ./configure --enable-erlang
  $ make

Installation.

  $ cp modules/erlang.so /path/to/php5/modules

Edit php.ini and add:

  extension=erlang.so
  erlang.node=node@host
  erlang.cookie=secret

replacing node@host with your local Erlang node, and erlang.cookie
with the secret cookie for that node.

USAGE

This extension provides these functions:

erlang_init()

  Must be called before any other erlang functions.  This insures that
  we have a (persistent) connection to the node defined in the php.ini.

erlang_self()

  Return the PID of the PHP C-node as a resource.

erlang_term( $format, $params )

  Build an Erlang term from a format string and an array of params.
  The format string specifies the structure of the term with "{", "}",
  "[", "|", and "]" chars, and includes values from the params with:

     ~a atom
     ~s string
     ~b binary
     ~l long
     ~d double
     ~p PID
     ~t an Erlang term

  Params are used in the order in which they appear in the format
  string.  For example:

    erlang_term( "{~a,~s}", array( "search", "apples" ) );
    erlang_term( "{~a,[~s,~s,~s]}", array( "names", "bob", "joe", "marge" ) );
    erlang_term( "{~p,~a,~d}", array( erlang_self(), "sqrt", 153 ) );
    erlang_term( "{~a,~t}", array( "item", erlang_term( "{~s}", array( "something" ) ) ) );

erlang_extract( $term )

  Take an Erlang term from erlang_receive() or constructed with
  erlang_term() and turn it into PHP data.  Tuples and lists are
  turned into arrays, strings, longs, and doubles into the
  corresponding values, and PIDs into PID resources.  For example:

    erlang_extract( {ok,["a","b"]} ) => array( "ok", array( "a", "b" ) )
    erlang_extract( {sqrt,123.4} ) => array( "sqrt", 123.4 )

erlang_receive( [ $timeout ] )

  Wait for an Erlang term for up to timeout milliseconds.  On timeout
  or error, return FALSE.  Otherwise return a term to be decoded with
  erlang_extract().

erlang_send( $pid, $term [, $timeout ] )

  Send a term (probably constructed with erlang_term()) to the PID,
  waiting at most timeout milliseconds for success, returning FALSE on
  error.

erlang_send_reg( $name, $term [, $timeout ] )

  Send a term (probably constructed with erlang_term()) to the
  registered name, waiting at most timeout milliseconds for success,
  returning FALSE on error.

EXAMPLE

On the Erlang side:

  -module( echo ).
  -export( [ start/0, echo/0 ] ).

  start() ->
      register( echo, spawn( ?MODULE, echo, [ ] ) ).

  echo() ->
      receive
          { Pid, X } ->
              Pid ! X,
              echo();
          quit -> ok
      end.
   

On the PHP side:

    erlang_init();
    $self = erlang_self();
    for( $i = 0; $i < 4; $i++ ) {
        $message = erlang_term( "{~p,~s}", array( $self, "foo{$i}" ) );
        erlang_send_reg( "echo", $message, 100 );
    }
    for( $i = 0; $i < 4; $i++ ) {
        $message = erlang_receive( 100 );
        if( $message !== FALSE ) {
            print_r( erlang_extract( $message ) );
        } else {
            echo( "No message received!n" );
        }
    }