php 安装libevent 附webserver代码

/usr/local/php/bin/pecl install channel://pecl.php.net/libevent-0.0.4

添加 extension=libevent.so 到 php.ini

基于libevent的简单server 监听2000端口 打印回当前时间

<?php

$socket = stream_socket_server ('tcp://0.0.0.0:2000', $errno, $errstr);

stream_set_blocking($socket, 0);

$base = event_base_new();

$event = event_new();

event_set($event, $socket, EV_READ | EV_PERSIST, 'ev_accept', $base);

event_base_set($event, $base);

event_add($event);

event_base_loop($base);

function ev_accept($socket, $flag, $base) {

   

    $connection = stream_socket_accept($socket);

    stream_set_blocking($connection, 0);

   

    $buffer = event_buffer_new($connection, 'ev_read', NULL, 'ev_error',  $connection);     

    event_buffer_base_set($buffer, $base);

    event_buffer_timeout_set($buffer, 30, 30);

    event_buffer_watermark_set($buffer, EV_READ, 0, 0xffffff);

    event_buffer_priority_set($buffer, 10);

    event_buffer_enable($buffer, EV_READ | EV_PERSIST);

   

    $GLOBALS['_'] = $buffer;  //这个buffer一定要赋给个全局的变量 貌似是传值过程中的bug 或者5.3.8的闭包还是有问题？

}

function ev_error($buffer, $error, $connection) {

    event_buffer_disable($buffer, EV_READ | EV_WRITE);                 

    event_buffer_free($buffer);                 

    fclose($connection);                 

}

function ev_read($buffer, $connection) {    

//      var_dump($connection);

    while ($read = event_buffer_read($buffer, 256)) {

       // var_dump($read);

    }

    fwrite($connection , date('Y-m-d H:i:s'));

    ev_error($buffer , '' , $connection);

}

?>

通过浏览器访问下这台机器的2000端口 yeah~