通过 php 中的特定端口 (fsockopen) ping 服务器

发布于 2024-09-17 20:57:32 字数 820 浏览 5 评论 0原文

函数 checkServer($domain, $port=80) { 全局$checkTimeout，$testServer；

$status = 0;

$starttime = microtime(true);
$file = @fsockopen ($domain, $port, $errno, $errstr, $checkTimeout);
$stoptime = microtime(true);

if($file)
{
    fclose($file);
    $status = ($stoptime - $starttime) * 1000;
    $status = floor($status);
}
else
{
    $testfile = @fsockopen ($testServer, 80, $errno, $errstr, $checkTimeout);
    if($testfile)
    {
        fclose($testfile);
        $status = -1;
    }
    else
    {
        $status = -2;
    }
}

return $status;

测试

服务器是google.sk，checkTimeout 是10 秒。这实际上是有效的，但是当我尝试在循环中运行它大约 50 次，并执行其他操作（mysql 查询和类似的操作）时，它并不慢，但它会导致我的 CPU 负载 100%，直到脚本结束。这是一个让我的 cpu 疯狂的 apache 进程...所以我想问你是否对此有任何想法。也许一些提示如何在 python 或 bash 等中执行相同的操作将受到赞赏。

谢谢您的回复:)

原文

function checkServer($domain, $port=80)
{
global $checkTimeout, $testServer;

$status = 0;

$starttime = microtime(true);
$file = @fsockopen ($domain, $port, $errno, $errstr, $checkTimeout);
$stoptime = microtime(true);

if($file)
{
    fclose($file);
    $status = ($stoptime - $starttime) * 1000;
    $status = floor($status);
}
else
{
    $testfile = @fsockopen ($testServer, 80, $errno, $errstr, $checkTimeout);
    if($testfile)
    {
        fclose($testfile);
        $status = -1;
    }
    else
    {
        $status = -2;
    }
}

return $status;

}

the testserver is google.sk, and checkTimeout is 10 seconds. This actually works, but when i try to run it in a loop for about 50 times, and do other stuff (mysql queries and things like that), it's not slow, but it causes 100% load of my CPU until the script ends. It's a single apache proccess that drives my cpu crazy ... So i wanted to ask you if you have any ideas about it. maybe some tip how to do the same in python or bash or so will be appreciated.

Thank you for the responses :)

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