需要使用PHP ping跟踪PC的停机时间并显示D:HH:MM的停机时间 [英] Need to track PC down times using PHP ping and display time down D:HH:MM
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问题描述
我目前有这段代码，可以作为ph值运行，可以让我知道计算机是否可以ping通:
I currently have this code, which runs as a ph that works to let me know if the pc's are pinging:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="refresh" content="30">
</head>
<body>
<h1>PC Test Ping Status</h1>
<?php
$host="10.161.10.98";
exec("ping -c 2 " . $host, $output, $result);
if ($result == 0)
echo "<p>p2 On-Line</p>";
else
echo "<p>p2 Off-Line !</p>";
$host="10.161.10.125";
exec("ping -c 2 " . $host, $output, $result);
if ($result == 0)
echo "<p>p3 On-Line</p>";
else
echo "<p>p3 Off-Line!</p>";
?>
</body>
</html>
我想跟踪自上次成功ping以来的时间(如果PC不能ping通).
I want to track the time since the last successful ping if the pc isn't pinging.
推荐答案
以下是根据要求使用文本文件的示例.一些注意事项:
Here is an example using a text file, as requested. A few notes:
- 为简单起见，我建议使用CURL代替
exec，因为它应该更快，更可靠.这将检查HTTP状态代码"200"，这表示它返回了有效的请求. - 您需要确保您的文本文件具有适当的读&写入权限.
- 我已经将此答案更新为也地址您的其他问题.
- For simplicity, I suggest using CURL instead of
execas it should be a lot faster and more reliable. This checks for the HTTP status code "200" which means it returned a valid request. - You will need to make sure your text file/s have the appropriate read & write permissions.
- I've updated this answer to also address your other question.
此示例中的初始文本文件名为data.txt，其中包含以下内容:
The initial text file in this example is named data.txt and contains the following:
p1|google.com|
p2|yahoo.com|
p2|amazon.com|
以下代码将循环遍历列表中的每个服务器，并在在线时以最新日期更新记录.
The following code will cycle through each server in the list, and update the records with the latest date if it's online.
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="refresh" content="30">
</head>
<body>
<h1>PC Test Ping Status</h1>
<?php
function ping($addr) {
$ch = curl_init($addr);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
//get response code
curl_exec($ch);
$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($code === 200) {
return true;
}
return false;
}
$file = 'data.txt';
$servers = array_filter(explode("\n", file_get_contents($file)));
foreach ($servers as $key => $server) {
list($sname, $saddr, $suptime) = explode('|', $server);
if (ping($saddr)) {
echo "<p>$sname is online</p>";
$date = new DateTime();
$suptime = $date->format('Y-m-d H:i:s');
} else {
echo "<p>$sname is offline since: ";
if (trim($suptime) !== '') {
echo $suptime . '</p>';
} else {
echo 'unknown</p>';
}
}
$servers[$key] = implode('|', array($sname, $saddr, $suptime)) . "\n";
}
file_put_contents($file, $servers);
?>
</body>
</html>
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