$port = $req_list[$i]['port'][$j];
    }
    if ($pid = pcntl_fork()) {
        continue;
    } else {
        if (ob_get_level()) {
            ob_end_clean();
        }
        register_shutdown_function('shutdown');
        // Discard the output buffer and close
        if (posix_setsid() < 0) {
            die("child : error");
        }
        // <- This is an error
        // Do your stuff here
        my_ping($ip, $port);
        break;
    }
}
function ParseConfigFile(&$req_list)
{
    $xml = simplexml_load_file(YYBTB_XML);
    $i = 0;
    $count = 0;
    //    $req_list = array();
    foreach ($xml->children() as $child) {
        foreach ($child->attributes() as $key => $value) {
            if (strcmp((string) $key, 'mobileip') == 0) {
                $req_list[$i]['mobileip'] = (string) $value;
            } else {
                if (strcmp((string) $key, 'portlist') == 0) {
<?php

#version 1.0
define('YYBTB_XML', dirname(__FILE__) . "/yybtb.xml");
$req_list = array();
$count = ParseConfigFile($req_list);
#    $i = 0;
$workers = [];
#	$worker_num = $count;//创建的进程数
function shutdown()
{
    posix_kill(posix_getpid(), SIGHUP);
}
echo my_ping('www.baidu.com', 80, 1);
$ip = 0;
$port = 0;
$index = 0;
for ($i = 0; $i < sizeof($req_list); $i++) {
    $ip = $req_list[$i]['mobileip'];
    for ($j = 0; $j < sizeof($req_list[$i]['port']); $j++) {
        $port = $req_list[$i]['port'][$j];
    }
    //	  	echo my_ping($ip, $port, 1);
}
function ParseConfigFile(&$req_list)
{
    $xml = simplexml_load_file(YYBTB_XML);
    $i = 0;
    $count = 0;
    //    $req_list = array();
    foreach ($xml->children() as $child) {